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Finding the Fourth Proportional to 240,679.92, 332,136.54 and 145,239.24

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Solution

The fourth proportional to 240,679.92, 332,136.54 and 145,239.24 is: 200,429.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,679.92 : 332,136.54 = 145,239.24 : x
  2. Step 2: Convert to fraction form
    240,679.92/332,136.54 = 145,239.24/x
  3. Step 3: Cross multiply
    240,679.92x = 332,136.54 × 145,239.24
  4. Step 4: Simplify right side
    240,679.92x = 48,239,258,645.83
  5. Step 5: Solve for x
    x = 48,239,258,645.83/240,679.92
  6. Step 6: Final answer
    x = 200,429.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.