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Finding the Fourth Proportional to 60,680.61, 90,955.17 and 31,057.83

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Solution

The fourth proportional to 60,680.61, 90,955.17 and 31,057.83 is: 46,553.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,680.61 : 90,955.17 = 31,057.83 : x
  2. Step 2: Convert to fraction form
    60,680.61/90,955.17 = 31,057.83/x
  3. Step 3: Cross multiply
    60,680.61x = 90,955.17 × 31,057.83
  4. Step 4: Simplify right side
    60,680.61x = 2,824,870,207.48
  5. Step 5: Solve for x
    x = 2,824,870,207.48/60,680.61
  6. Step 6: Final answer
    x = 46,553.10

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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.