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Finding the Fourth Proportional to 240,991.88, 361,505.10 and 72,498.92

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Solution

The fourth proportional to 240,991.88, 361,505.10 and 72,498.92 is: 108,753.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,991.88 : 361,505.10 = 72,498.92 : x
  2. Step 2: Convert to fraction form
    240,991.88/361,505.10 = 72,498.92/x
  3. Step 3: Cross multiply
    240,991.88x = 361,505.10 × 72,498.92
  4. Step 4: Simplify right side
    240,991.88x = 26,208,729,324.49
  5. Step 5: Solve for x
    x = 26,208,729,324.49/240,991.88
  6. Step 6: Final answer
    x = 108,753.58

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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.