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Finding the Fourth Proportional to 170,115.72, 234,744.42 and 98,500.59

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Solution

The fourth proportional to 170,115.72, 234,744.42 and 98,500.59 is: 135,921.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,115.72 : 234,744.42 = 98,500.59 : x
  2. Step 2: Convert to fraction form
    170,115.72/234,744.42 = 98,500.59/x
  3. Step 3: Cross multiply
    170,115.72x = 234,744.42 × 98,500.59
  4. Step 4: Simplify right side
    170,115.72x = 23,122,463,869.21
  5. Step 5: Solve for x
    x = 23,122,463,869.21/170,115.72
  6. Step 6: Final answer
    x = 135,921.97

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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.