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Finding the Fourth Proportional to 417,604.98, 626,100.74 and 133,131.90

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Solution

The fourth proportional to 417,604.98, 626,100.74 and 133,131.90 is: 199,600.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,604.98 : 626,100.74 = 133,131.90 : x
  2. Step 2: Convert to fraction form
    417,604.98/626,100.74 = 133,131.90/x
  3. Step 3: Cross multiply
    417,604.98x = 626,100.74 × 133,131.90
  4. Step 4: Simplify right side
    417,604.98x = 83,353,981,107.61
  5. Step 5: Solve for x
    x = 83,353,981,107.61/417,604.98
  6. Step 6: Final answer
    x = 199,600.06

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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.