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Finding the Fourth Proportional to 63,478.60, 95,217.90 and 57,646.60

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Solution

The fourth proportional to 63,478.60, 95,217.90 and 57,646.60 is: 86,469.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,478.60 : 95,217.90 = 57,646.60 : x
  2. Step 2: Convert to fraction form
    63,478.60/95,217.90 = 57,646.60/x
  3. Step 3: Cross multiply
    63,478.60x = 95,217.90 × 57,646.60
  4. Step 4: Simplify right side
    63,478.60x = 5,488,988,194.14
  5. Step 5: Solve for x
    x = 5,488,988,194.14/63,478.60
  6. Step 6: Final answer
    x = 86,469.90

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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.