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Finding the Fourth Proportional to 417,347.03, 626,070.21 and 132,937.71

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Solution

The fourth proportional to 417,347.03, 626,070.21 and 132,937.71 is: 199,422.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,347.03 : 626,070.21 = 132,937.71 : x
  2. Step 2: Convert to fraction form
    417,347.03/626,070.21 = 132,937.71/x
  3. Step 3: Cross multiply
    417,347.03x = 626,070.21 × 132,937.71
  4. Step 4: Simplify right side
    417,347.03x = 83,228,340,016.62
  5. Step 5: Solve for x
    x = 83,228,340,016.62/417,347.03
  6. Step 6: Final answer
    x = 199,422.39

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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.