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Finding the Fourth Proportional to 61,120.52, 91,706.92 and 25,590.14

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Solution

The fourth proportional to 61,120.52, 91,706.92 and 25,590.14 is: 38,396.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,120.52 : 91,706.92 = 25,590.14 : x
  2. Step 2: Convert to fraction form
    61,120.52/91,706.92 = 25,590.14/x
  3. Step 3: Cross multiply
    61,120.52x = 91,706.92 × 25,590.14
  4. Step 4: Simplify right side
    61,120.52x = 2,346,792,921.77
  5. Step 5: Solve for x
    x = 2,346,792,921.77/61,120.52
  6. Step 6: Final answer
    x = 38,396.15

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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.