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Finding the Fourth Proportional to 117,732.52, 162,467.52 and 66,749.92

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Solution

The fourth proportional to 117,732.52, 162,467.52 and 66,749.92 is: 92,112.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,732.52 : 162,467.52 = 66,749.92 : x
  2. Step 2: Convert to fraction form
    117,732.52/162,467.52 = 66,749.92/x
  3. Step 3: Cross multiply
    117,732.52x = 162,467.52 × 66,749.92
  4. Step 4: Simplify right side
    117,732.52x = 10,844,693,962.60
  5. Step 5: Solve for x
    x = 10,844,693,962.60/117,732.52
  6. Step 6: Final answer
    x = 92,112.99

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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.