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Finding the Fourth Proportional to 435,906.64, 653,862.05 and 132,303.43

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Solution

The fourth proportional to 435,906.64, 653,862.05 and 132,303.43 is: 198,455.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,906.64 : 653,862.05 = 132,303.43 : x
  2. Step 2: Convert to fraction form
    435,906.64/653,862.05 = 132,303.43/x
  3. Step 3: Cross multiply
    435,906.64x = 653,862.05 × 132,303.43
  4. Step 4: Simplify right side
    435,906.64x = 86,508,193,839.77
  5. Step 5: Solve for x
    x = 86,508,193,839.77/435,906.64
  6. Step 6: Final answer
    x = 198,455.78

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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.