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Finding the Fourth Proportional to 107,363.92, 161,045.88 and 28,481.44

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Solution

The fourth proportional to 107,363.92, 161,045.88 and 28,481.44 is: 42,722.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,363.92 : 161,045.88 = 28,481.44 : x
  2. Step 2: Convert to fraction form
    107,363.92/161,045.88 = 28,481.44/x
  3. Step 3: Cross multiply
    107,363.92x = 161,045.88 × 28,481.44
  4. Step 4: Simplify right side
    107,363.92x = 4,586,818,568.47
  5. Step 5: Solve for x
    x = 4,586,818,568.47/107,363.92
  6. Step 6: Final answer
    x = 42,722.16

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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.