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Finding the Fourth Proportional to 491,839.61, 737,785.61 and 154,906.59

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Solution

The fourth proportional to 491,839.61, 737,785.61 and 154,906.59 is: 232,368.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,839.61 : 737,785.61 = 154,906.59 : x
  2. Step 2: Convert to fraction form
    491,839.61/737,785.61 = 154,906.59/x
  3. Step 3: Cross multiply
    491,839.61x = 737,785.61 × 154,906.59
  4. Step 4: Simplify right side
    491,839.61x = 114,287,856,440.58
  5. Step 5: Solve for x
    x = 114,287,856,440.58/491,839.61
  6. Step 6: Final answer
    x = 232,368.14

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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.