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Finding the Fourth Proportional to 117,082.80, 161,574.08 and 63,367.79

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Solution

The fourth proportional to 117,082.80, 161,574.08 and 63,367.79 is: 87,447.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,082.80 : 161,574.08 = 63,367.79 : x
  2. Step 2: Convert to fraction form
    117,082.80/161,574.08 = 63,367.79/x
  3. Step 3: Cross multiply
    117,082.80x = 161,574.08 × 63,367.79
  4. Step 4: Simplify right side
    117,082.80x = 10,238,591,246.17
  5. Step 5: Solve for x
    x = 10,238,591,246.17/117,082.80
  6. Step 6: Final answer
    x = 87,447.44

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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.