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Finding the Fourth Proportional to 240,749.61, 361,123.58 and 72,269.26

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Solution

The fourth proportional to 240,749.61, 361,123.58 and 72,269.26 is: 108,403.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,749.61 : 361,123.58 = 72,269.26 : x
  2. Step 2: Convert to fraction form
    240,749.61/361,123.58 = 72,269.26/x
  3. Step 3: Cross multiply
    240,749.61x = 361,123.58 × 72,269.26
  4. Step 4: Simplify right side
    240,749.61x = 26,098,131,999.20
  5. Step 5: Solve for x
    x = 26,098,131,999.20/240,749.61
  6. Step 6: Final answer
    x = 108,403.63

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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.