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Finding the Fourth Proportional to 87,241.60, 130,862.40 and 63,625.60

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Solution

The fourth proportional to 87,241.60, 130,862.40 and 63,625.60 is: 95,438.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,241.60 : 130,862.40 = 63,625.60 : x
  2. Step 2: Convert to fraction form
    87,241.60/130,862.40 = 63,625.60/x
  3. Step 3: Cross multiply
    87,241.60x = 130,862.40 × 63,625.60
  4. Step 4: Simplify right side
    87,241.60x = 8,326,198,717.44
  5. Step 5: Solve for x
    x = 8,326,198,717.44/87,241.60
  6. Step 6: Final answer
    x = 95,438.40

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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.