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Finding the Fourth Proportional to 138,082.16, 207,158.88 and 63,166.52

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Solution

The fourth proportional to 138,082.16, 207,158.88 and 63,166.52 is: 94,766.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,082.16 : 207,158.88 = 63,166.52 : x
  2. Step 2: Convert to fraction form
    138,082.16/207,158.88 = 63,166.52/x
  3. Step 3: Cross multiply
    138,082.16x = 207,158.88 × 63,166.52
  4. Step 4: Simplify right side
    138,082.16x = 13,085,505,536.70
  5. Step 5: Solve for x
    x = 13,085,505,536.70/138,082.16
  6. Step 6: Final answer
    x = 94,766.08

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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.