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Finding the Fourth Proportional to 240,691.36, 361,094.72 and 74,479.36

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Solution

The fourth proportional to 240,691.36, 361,094.72 and 74,479.36 is: 111,736.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,691.36 : 361,094.72 = 74,479.36 : x
  2. Step 2: Convert to fraction form
    240,691.36/361,094.72 = 74,479.36/x
  3. Step 3: Cross multiply
    240,691.36x = 361,094.72 × 74,479.36
  4. Step 4: Simplify right side
    240,691.36x = 26,894,103,644.98
  5. Step 5: Solve for x
    x = 26,894,103,644.98/240,691.36
  6. Step 6: Final answer
    x = 111,736.89

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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.