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Finding the Fourth Proportional to 381,391.52, 572,082.84 and 93,205.56

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Solution

The fourth proportional to 381,391.52, 572,082.84 and 93,205.56 is: 139,807.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,391.52 : 572,082.84 = 93,205.56 : x
  2. Step 2: Convert to fraction form
    381,391.52/572,082.84 = 93,205.56/x
  3. Step 3: Cross multiply
    381,391.52x = 572,082.84 × 93,205.56
  4. Step 4: Simplify right side
    381,391.52x = 53,321,301,468.59
  5. Step 5: Solve for x
    x = 53,321,301,468.59/381,391.52
  6. Step 6: Final answer
    x = 139,807.25

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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.