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Finding the Fourth Proportional to 73,508.62, 110,160.78 and 38,378.20

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Solution

The fourth proportional to 73,508.62, 110,160.78 and 38,378.20 is: 57,513.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,508.62 : 110,160.78 = 38,378.20 : x
  2. Step 2: Convert to fraction form
    73,508.62/110,160.78 = 38,378.20/x
  3. Step 3: Cross multiply
    73,508.62x = 110,160.78 × 38,378.20
  4. Step 4: Simplify right side
    73,508.62x = 4,227,772,447.00
  5. Step 5: Solve for x
    x = 4,227,772,447.00/73,508.62
  6. Step 6: Final answer
    x = 57,513.97

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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.