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Finding the Fourth Proportional to 436,168.59, 654,252.08 and 136,672.11

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Solution

The fourth proportional to 436,168.59, 654,252.08 and 136,672.11 is: 205,007.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,168.59 : 654,252.08 = 136,672.11 : x
  2. Step 2: Convert to fraction form
    436,168.59/654,252.08 = 136,672.11/x
  3. Step 3: Cross multiply
    436,168.59x = 654,252.08 × 136,672.11
  4. Step 4: Simplify right side
    436,168.59x = 89,418,011,562.13
  5. Step 5: Solve for x
    x = 89,418,011,562.13/436,168.59
  6. Step 6: Final answer
    x = 205,007.91

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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.