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Finding the Fourth Proportional to 240,749.88, 361,123.92 and 72,269.48

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Solution

The fourth proportional to 240,749.88, 361,123.92 and 72,269.48 is: 108,403.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,749.88 : 361,123.92 = 72,269.48 : x
  2. Step 2: Convert to fraction form
    240,749.88/361,123.92 = 72,269.48/x
  3. Step 3: Cross multiply
    240,749.88x = 361,123.92 × 72,269.48
  4. Step 4: Simplify right side
    240,749.88x = 26,098,237,913.96
  5. Step 5: Solve for x
    x = 26,098,237,913.96/240,749.88
  6. Step 6: Final answer
    x = 108,403.95

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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.