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Finding the Fourth Proportional to 92,456.64, 138,660.66 and 33,281.28

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Solution

The fourth proportional to 92,456.64, 138,660.66 and 33,281.28 is: 49,913.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,456.64 : 138,660.66 = 33,281.28 : x
  2. Step 2: Convert to fraction form
    92,456.64/138,660.66 = 33,281.28/x
  3. Step 3: Cross multiply
    92,456.64x = 138,660.66 × 33,281.28
  4. Step 4: Simplify right side
    92,456.64x = 4,614,804,250.44
  5. Step 5: Solve for x
    x = 4,614,804,250.44/92,456.64
  6. Step 6: Final answer
    x = 49,913.17

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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.