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Finding the Fourth Proportional to 88,625.60, 132,938.40 and 63,742.40

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Solution

The fourth proportional to 88,625.60, 132,938.40 and 63,742.40 is: 95,613.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,625.60 : 132,938.40 = 63,742.40 : x
  2. Step 2: Convert to fraction form
    88,625.60/132,938.40 = 63,742.40/x
  3. Step 3: Cross multiply
    88,625.60x = 132,938.40 × 63,742.40
  4. Step 4: Simplify right side
    88,625.60x = 8,473,812,668.16
  5. Step 5: Solve for x
    x = 8,473,812,668.16/88,625.60
  6. Step 6: Final answer
    x = 95,613.60

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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.