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Finding the Fourth Proportional to 417,551.73, 626,020.88 and 133,078.59

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Solution

The fourth proportional to 417,551.73, 626,020.88 and 133,078.59 is: 199,520.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,551.73 : 626,020.88 = 133,078.59 : x
  2. Step 2: Convert to fraction form
    417,551.73/626,020.88 = 133,078.59/x
  3. Step 3: Cross multiply
    417,551.73x = 626,020.88 × 133,078.59
  4. Step 4: Simplify right side
    417,551.73x = 83,309,975,355.57
  5. Step 5: Solve for x
    x = 83,309,975,355.57/417,551.73
  6. Step 6: Final answer
    x = 199,520.13

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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.