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Finding the Fourth Proportional to 92,335.72, 138,541.92 and 44,280.04

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Solution

The fourth proportional to 92,335.72, 138,541.92 and 44,280.04 is: 66,438.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,335.72 : 138,541.92 = 44,280.04 : x
  2. Step 2: Convert to fraction form
    92,335.72/138,541.92 = 44,280.04/x
  3. Step 3: Cross multiply
    92,335.72x = 138,541.92 × 44,280.04
  4. Step 4: Simplify right side
    92,335.72x = 6,134,641,759.28
  5. Step 5: Solve for x
    x = 6,134,641,759.28/92,335.72
  6. Step 6: Final answer
    x = 66,438.45

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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.