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Finding the Fourth Proportional to 75,093.20, 112,348.20 and 48,849.20

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Solution

The fourth proportional to 75,093.20, 112,348.20 and 48,849.20 is: 73,084.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,093.20 : 112,348.20 = 48,849.20 : x
  2. Step 2: Convert to fraction form
    75,093.20/112,348.20 = 48,849.20/x
  3. Step 3: Cross multiply
    75,093.20x = 112,348.20 × 48,849.20
  4. Step 4: Simplify right side
    75,093.20x = 5,488,119,691.44
  5. Step 5: Solve for x
    x = 5,488,119,691.44/75,093.20
  6. Step 6: Final answer
    x = 73,084.11

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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.