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Finding the Fourth Proportional to 435,963.88, 653,592.90 and 136,290.16

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Solution

The fourth proportional to 435,963.88, 653,592.90 and 136,290.16 is: 204,324.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,963.88 : 653,592.90 = 136,290.16 : x
  2. Step 2: Convert to fraction form
    435,963.88/653,592.90 = 136,290.16/x
  3. Step 3: Cross multiply
    435,963.88x = 653,592.90 × 136,290.16
  4. Step 4: Simplify right side
    435,963.88x = 89,078,280,915.86
  5. Step 5: Solve for x
    x = 89,078,280,915.86/435,963.88
  6. Step 6: Final answer
    x = 204,324.91

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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.