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Finding the Fourth Proportional to 417,359.39, 626,089.22 and 147,432.11

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Solution

The fourth proportional to 417,359.39, 626,089.22 and 147,432.11 is: 221,165.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,359.39 : 626,089.22 = 147,432.11 : x
  2. Step 2: Convert to fraction form
    417,359.39/626,089.22 = 147,432.11/x
  3. Step 3: Cross multiply
    417,359.39x = 626,089.22 × 147,432.11
  4. Step 4: Simplify right side
    417,359.39x = 92,305,650,885.25
  5. Step 5: Solve for x
    x = 92,305,650,885.25/417,359.39
  6. Step 6: Final answer
    x = 221,165.87

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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.