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Finding the Fourth Proportional to 73,590.30, 110,385.45 and 38,540.70

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Solution

The fourth proportional to 73,590.30, 110,385.45 and 38,540.70 is: 57,811.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,590.30 : 110,385.45 = 38,540.70 : x
  2. Step 2: Convert to fraction form
    73,590.30/110,385.45 = 38,540.70/x
  3. Step 3: Cross multiply
    73,590.30x = 110,385.45 × 38,540.70
  4. Step 4: Simplify right side
    73,590.30x = 4,254,332,512.82
  5. Step 5: Solve for x
    x = 4,254,332,512.82/73,590.30
  6. Step 6: Final answer
    x = 57,811.05

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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.