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Finding the Fourth Proportional to 138,452.60, 207,776.10 and 59,623.40

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Solution

The fourth proportional to 138,452.60, 207,776.10 and 59,623.40 is: 89,476.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,452.60 : 207,776.10 = 59,623.40 : x
  2. Step 2: Convert to fraction form
    138,452.60/207,776.10 = 59,623.40/x
  3. Step 3: Cross multiply
    138,452.60x = 207,776.10 × 59,623.40
  4. Step 4: Simplify right side
    138,452.60x = 12,388,317,520.74
  5. Step 5: Solve for x
    x = 12,388,317,520.74/138,452.60
  6. Step 6: Final answer
    x = 89,476.96

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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.