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Finding the Fourth Proportional to 113,172.90, 169,593.19 and 56,935.71

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Solution

The fourth proportional to 113,172.90, 169,593.19 and 56,935.71 is: 85,319.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,172.90 : 169,593.19 = 56,935.71 : x
  2. Step 2: Convert to fraction form
    113,172.90/169,593.19 = 56,935.71/x
  3. Step 3: Cross multiply
    113,172.90x = 169,593.19 × 56,935.71
  4. Step 4: Simplify right side
    113,172.90x = 9,655,908,399.14
  5. Step 5: Solve for x
    x = 9,655,908,399.14/113,172.90
  6. Step 6: Final answer
    x = 85,319.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.