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Finding the Fourth Proportional to 491,248.28, 736,872.35 and 136,262.30

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Solution

The fourth proportional to 491,248.28, 736,872.35 and 136,262.30 is: 204,393.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,248.28 : 736,872.35 = 136,262.30 : x
  2. Step 2: Convert to fraction form
    491,248.28/736,872.35 = 136,262.30/x
  3. Step 3: Cross multiply
    491,248.28x = 736,872.35 × 136,262.30
  4. Step 4: Simplify right side
    491,248.28x = 100,407,916,851.73
  5. Step 5: Solve for x
    x = 100,407,916,851.73/491,248.28
  6. Step 6: Final answer
    x = 204,393.42

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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.