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Finding the Fourth Proportional to 435,572.79, 653,335.92 and 136,019.09

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Solution

The fourth proportional to 435,572.79, 653,335.92 and 136,019.09 is: 204,021.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,572.79 : 653,335.92 = 136,019.09 : x
  2. Step 2: Convert to fraction form
    435,572.79/653,335.92 = 136,019.09/x
  3. Step 3: Cross multiply
    435,572.79x = 653,335.92 × 136,019.09
  4. Step 4: Simplify right side
    435,572.79x = 88,866,154,036.03
  5. Step 5: Solve for x
    x = 88,866,154,036.03/435,572.79
  6. Step 6: Final answer
    x = 204,021.36

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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.