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Finding the Fourth Proportional to 138,522.80, 207,635.16 and 59,674.16

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Solution

The fourth proportional to 138,522.80, 207,635.16 and 59,674.16 is: 89,447.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,522.80 : 207,635.16 = 59,674.16 : x
  2. Step 2: Convert to fraction form
    138,522.80/207,635.16 = 59,674.16/x
  3. Step 3: Cross multiply
    138,522.80x = 207,635.16 × 59,674.16
  4. Step 4: Simplify right side
    138,522.80x = 12,390,453,759.47
  5. Step 5: Solve for x
    x = 12,390,453,759.47/138,522.80
  6. Step 6: Final answer
    x = 89,447.04

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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.