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Finding the Fourth Proportional to 94,987.55, 142,644.32 and 84,337.97

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Solution

The fourth proportional to 94,987.55, 142,644.32 and 84,337.97 is: 126,651.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,987.55 : 142,644.32 = 84,337.97 : x
  2. Step 2: Convert to fraction form
    94,987.55/142,644.32 = 84,337.97/x
  3. Step 3: Cross multiply
    94,987.55x = 142,644.32 × 84,337.97
  4. Step 4: Simplify right side
    94,987.55x = 12,030,332,591.68
  5. Step 5: Solve for x
    x = 12,030,332,591.68/94,987.55
  6. Step 6: Final answer
    x = 126,651.68

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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.