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Finding the Fourth Proportional to 104,248.56, 143,863.20 and 56,501.76

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Solution

The fourth proportional to 104,248.56, 143,863.20 and 56,501.76 is: 77,972.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,248.56 : 143,863.20 = 56,501.76 : x
  2. Step 2: Convert to fraction form
    104,248.56/143,863.20 = 56,501.76/x
  3. Step 3: Cross multiply
    104,248.56x = 143,863.20 × 56,501.76
  4. Step 4: Simplify right side
    104,248.56x = 8,128,523,999.23
  5. Step 5: Solve for x
    x = 8,128,523,999.23/104,248.56
  6. Step 6: Final answer
    x = 77,972.53

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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.