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Finding the Fourth Proportional to 87,663,818.80, 131,495,728.20 and 36,582,497.20

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Solution

The fourth proportional to 87,663,818.80, 131,495,728.20 and 36,582,497.20 is: 54,873,745.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,663,818.80 : 131,495,728.20 = 36,582,497.20 : x
  2. Step 2: Convert to fraction form
    87,663,818.80/131,495,728.20 = 36,582,497.20/x
  3. Step 3: Cross multiply
    87,663,818.80x = 131,495,728.20 × 36,582,497.20
  4. Step 4: Simplify right side
    87,663,818.80x = 4,810,442,108,688,462
  5. Step 5: Solve for x
    x = 4,810,442,108,688,462/87,663,818.80
  6. Step 6: Final answer
    x = 54,873,745.80

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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.