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Finding the Fourth Proportional to 71,141.93, 98,255.10 and 55,201.97

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Solution

The fourth proportional to 71,141.93, 98,255.10 and 55,201.97 is: 76,240.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,141.93 : 98,255.10 = 55,201.97 : x
  2. Step 2: Convert to fraction form
    71,141.93/98,255.10 = 55,201.97/x
  3. Step 3: Cross multiply
    71,141.93x = 98,255.10 × 55,201.97
  4. Step 4: Simplify right side
    71,141.93x = 5,423,875,082.55
  5. Step 5: Solve for x
    x = 5,423,875,082.55/71,141.93
  6. Step 6: Final answer
    x = 76,240.20

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1.5x scale

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.