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Finding the Fourth Proportional to 92,325, 138,432.08 and 42,342.48

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Solution

The fourth proportional to 92,325, 138,432.08 and 42,342.48 is: 63,488.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,325 : 138,432.08 = 42,342.48 : x
  2. Step 2: Convert to fraction form
    92,325/138,432.08 = 42,342.48/x
  3. Step 3: Cross multiply
    92,325x = 138,432.08 × 42,342.48
  4. Step 4: Simplify right side
    92,325x = 5,861,557,578.76
  5. Step 5: Solve for x
    x = 5,861,557,578.76/92,325
  6. Step 6: Final answer
    x = 63,488.30

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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.