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Finding the Fourth Proportional to 416,687.59, 625,075.31 and 136,204.39

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Solution

The fourth proportional to 416,687.59, 625,075.31 and 136,204.39 is: 204,320.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,687.59 : 625,075.31 = 136,204.39 : x
  2. Step 2: Convert to fraction form
    416,687.59/625,075.31 = 136,204.39/x
  3. Step 3: Cross multiply
    416,687.59x = 625,075.31 × 136,204.39
  4. Step 4: Simplify right side
    416,687.59x = 85,138,001,302.61
  5. Step 5: Solve for x
    x = 85,138,001,302.61/416,687.59
  6. Step 6: Final answer
    x = 204,320.94

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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.