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Finding the Fourth Proportional to 103,663.84, 143,060.70 and 58,344.76

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Solution

The fourth proportional to 103,663.84, 143,060.70 and 58,344.76 is: 80,518.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,663.84 : 143,060.70 = 58,344.76 : x
  2. Step 2: Convert to fraction form
    103,663.84/143,060.70 = 58,344.76/x
  3. Step 3: Cross multiply
    103,663.84x = 143,060.70 × 58,344.76
  4. Step 4: Simplify right side
    103,663.84x = 8,346,841,849.28
  5. Step 5: Solve for x
    x = 8,346,841,849.28/103,663.84
  6. Step 6: Final answer
    x = 80,518.35

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Find fourth proportional to 51,831.92, 71,530.35 and 29,172.38
Half scale
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Double scale
Find fourth proportional to 103,664.84, 143,062.08 and 58,345.76
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.