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Finding the Fourth Proportional to 117,686.52, 176,246.01 and 67,614.48

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Solution

The fourth proportional to 117,686.52, 176,246.01 and 67,614.48 is: 101,258.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,686.52 : 176,246.01 = 67,614.48 : x
  2. Step 2: Convert to fraction form
    117,686.52/176,246.01 = 67,614.48/x
  3. Step 3: Cross multiply
    117,686.52x = 176,246.01 × 67,614.48
  4. Step 4: Simplify right side
    117,686.52x = 11,916,782,318.22
  5. Step 5: Solve for x
    x = 11,916,782,318.22/117,686.52
  6. Step 6: Final answer
    x = 101,258.69

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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.