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Finding the Fourth Proportional to 149,459.92, 206,138.05 and 95,749.93

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Solution

The fourth proportional to 149,459.92, 206,138.05 and 95,749.93 is: 132,060.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,459.92 : 206,138.05 = 95,749.93 : x
  2. Step 2: Convert to fraction form
    149,459.92/206,138.05 = 95,749.93/x
  3. Step 3: Cross multiply
    149,459.92x = 206,138.05 × 95,749.93
  4. Step 4: Simplify right side
    149,459.92x = 19,737,703,876.13
  5. Step 5: Solve for x
    x = 19,737,703,876.13/149,459.92
  6. Step 6: Final answer
    x = 132,060.18

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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.