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Finding the Fourth Proportional to 92,105.68, 127,117.14 and 51,821.20

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Solution

The fourth proportional to 92,105.68, 127,117.14 and 51,821.20 is: 71,519.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,105.68 : 127,117.14 = 51,821.20 : x
  2. Step 2: Convert to fraction form
    92,105.68/127,117.14 = 51,821.20/x
  3. Step 3: Cross multiply
    92,105.68x = 127,117.14 × 51,821.20
  4. Step 4: Simplify right side
    92,105.68x = 6,587,362,735.37
  5. Step 5: Solve for x
    x = 6,587,362,735.37/92,105.68
  6. Step 6: Final answer
    x = 71,519.61

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Half scale
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Double scale
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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.