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Finding the Fourth Proportional to 73,945.80, 110,832.30 and 38,867.40

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Solution

The fourth proportional to 73,945.80, 110,832.30 and 38,867.40 is: 58,255.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,945.80 : 110,832.30 = 38,867.40 : x
  2. Step 2: Convert to fraction form
    73,945.80/110,832.30 = 38,867.40/x
  3. Step 3: Cross multiply
    73,945.80x = 110,832.30 × 38,867.40
  4. Step 4: Simplify right side
    73,945.80x = 4,307,763,337.02
  5. Step 5: Solve for x
    x = 4,307,763,337.02/73,945.80
  6. Step 6: Final answer
    x = 58,255.69

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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.