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Finding the Fourth Proportional to 98,399.59, 135,787.52 and 58,126.29

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Solution

The fourth proportional to 98,399.59, 135,787.52 and 58,126.29 is: 80,211.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,399.59 : 135,787.52 = 58,126.29 : x
  2. Step 2: Convert to fraction form
    98,399.59/135,787.52 = 58,126.29/x
  3. Step 3: Cross multiply
    98,399.59x = 135,787.52 × 58,126.29
  4. Step 4: Simplify right side
    98,399.59x = 7,892,824,402.01
  5. Step 5: Solve for x
    x = 7,892,824,402.01/98,399.59
  6. Step 6: Final answer
    x = 80,211.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.