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Finding the Fourth Proportional to 83,999.92, 115,936.68 and 48,214.12

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Solution

The fourth proportional to 83,999.92, 115,936.68 and 48,214.12 is: 66,545.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,999.92 : 115,936.68 = 48,214.12 : x
  2. Step 2: Convert to fraction form
    83,999.92/115,936.68 = 48,214.12/x
  3. Step 3: Cross multiply
    83,999.92x = 115,936.68 × 48,214.12
  4. Step 4: Simplify right side
    83,999.92x = 5,589,785,001.92
  5. Step 5: Solve for x
    x = 5,589,785,001.92/83,999.92
  6. Step 6: Final answer
    x = 66,545.12

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1.5x scale

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.