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Finding the Fourth Proportional to 417,310.11, 626,011.20 and 132,934.50

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Solution

The fourth proportional to 417,310.11, 626,011.20 and 132,934.50 is: 199,416.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,310.11 : 626,011.20 = 132,934.50 : x
  2. Step 2: Convert to fraction form
    417,310.11/626,011.20 = 132,934.50/x
  3. Step 3: Cross multiply
    417,310.11x = 626,011.20 × 132,934.50
  4. Step 4: Simplify right side
    417,310.11x = 83,218,485,866.40
  5. Step 5: Solve for x
    x = 83,218,485,866.40/417,310.11
  6. Step 6: Final answer
    x = 199,416.41

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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.