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Finding the Fourth Proportional to 123,957.29, 185,949.14 and 39,687.32

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Solution

The fourth proportional to 123,957.29, 185,949.14 and 39,687.32 is: 59,535.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,957.29 : 185,949.14 = 39,687.32 : x
  2. Step 2: Convert to fraction form
    123,957.29/185,949.14 = 39,687.32/x
  3. Step 3: Cross multiply
    123,957.29x = 185,949.14 × 39,687.32
  4. Step 4: Simplify right side
    123,957.29x = 7,379,821,894.72
  5. Step 5: Solve for x
    x = 7,379,821,894.72/123,957.29
  6. Step 6: Final answer
    x = 59,535.20

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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.