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Finding the Fourth Proportional to 247,082.88, 370,693.44 and 80,987.52

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Solution

The fourth proportional to 247,082.88, 370,693.44 and 80,987.52 is: 121,503.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,082.88 : 370,693.44 = 80,987.52 : x
  2. Step 2: Convert to fraction form
    247,082.88/370,693.44 = 80,987.52/x
  3. Step 3: Cross multiply
    247,082.88x = 370,693.44 × 80,987.52
  4. Step 4: Simplify right side
    247,082.88x = 30,021,542,385.87
  5. Step 5: Solve for x
    x = 30,021,542,385.87/247,082.88
  6. Step 6: Final answer
    x = 121,503.94

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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.