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Finding the Fourth Proportional to 63,894.48, 88,149.24 and 42,687.60

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Solution

The fourth proportional to 63,894.48, 88,149.24 and 42,687.60 is: 58,892.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,894.48 : 88,149.24 = 42,687.60 : x
  2. Step 2: Convert to fraction form
    63,894.48/88,149.24 = 42,687.60/x
  3. Step 3: Cross multiply
    63,894.48x = 88,149.24 × 42,687.60
  4. Step 4: Simplify right side
    63,894.48x = 3,762,879,497.42
  5. Step 5: Solve for x
    x = 3,762,879,497.42/63,894.48
  6. Step 6: Final answer
    x = 58,892.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.