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Finding the Fourth Proportional to 92,474.60, 138,679.07 and 33,294.38

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Solution

The fourth proportional to 92,474.60, 138,679.07 and 33,294.38 is: 49,929.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,474.60 : 138,679.07 = 33,294.38 : x
  2. Step 2: Convert to fraction form
    92,474.60/138,679.07 = 33,294.38/x
  3. Step 3: Cross multiply
    92,474.60x = 138,679.07 × 33,294.38
  4. Step 4: Simplify right side
    92,474.60x = 4,617,232,794.76
  5. Step 5: Solve for x
    x = 4,617,232,794.76/92,474.60
  6. Step 6: Final answer
    x = 49,929.74

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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.