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Finding the Fourth Proportional to 92,493.52, 138,657.02 and 33,287.56

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Solution

The fourth proportional to 92,493.52, 138,657.02 and 33,287.56 is: 49,901.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,493.52 : 138,657.02 = 33,287.56 : x
  2. Step 2: Convert to fraction form
    92,493.52/138,657.02 = 33,287.56/x
  3. Step 3: Cross multiply
    92,493.52x = 138,657.02 × 33,287.56
  4. Step 4: Simplify right side
    92,493.52x = 4,615,553,872.67
  5. Step 5: Solve for x
    x = 4,615,553,872.67/92,493.52
  6. Step 6: Final answer
    x = 49,901.38

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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.