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Finding the Fourth Proportional to 491,380.92, 737,075.51 and 136,422.62

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Solution

The fourth proportional to 491,380.92, 737,075.51 and 136,422.62 is: 204,635.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,380.92 : 737,075.51 = 136,422.62 : x
  2. Step 2: Convert to fraction form
    491,380.92/737,075.51 = 136,422.62/x
  3. Step 3: Cross multiply
    491,380.92x = 737,075.51 × 136,422.62
  4. Step 4: Simplify right side
    491,380.92x = 100,553,767,844.55
  5. Step 5: Solve for x
    x = 100,553,767,844.55/491,380.92
  6. Step 6: Final answer
    x = 204,635.07

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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.