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Finding the Fourth Proportional to 240,815.38, 361,240.38 and 83,041.55

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Solution

The fourth proportional to 240,815.38, 361,240.38 and 83,041.55 is: 124,568.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,815.38 : 361,240.38 = 83,041.55 : x
  2. Step 2: Convert to fraction form
    240,815.38/361,240.38 = 83,041.55/x
  3. Step 3: Cross multiply
    240,815.38x = 361,240.38 × 83,041.55
  4. Step 4: Simplify right side
    240,815.38x = 29,997,961,077.79
  5. Step 5: Solve for x
    x = 29,997,961,077.79/240,815.38
  6. Step 6: Final answer
    x = 124,568.29

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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.