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Finding the Fourth Proportional to 242,689.20, 363,924.45 and 92,879.70

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Solution

The fourth proportional to 242,689.20, 363,924.45 and 92,879.70 is: 139,277.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,689.20 : 363,924.45 = 92,879.70 : x
  2. Step 2: Convert to fraction form
    242,689.20/363,924.45 = 92,879.70/x
  3. Step 3: Cross multiply
    242,689.20x = 363,924.45 × 92,879.70
  4. Step 4: Simplify right side
    242,689.20x = 33,801,193,738.67
  5. Step 5: Solve for x
    x = 33,801,193,738.67/242,689.20
  6. Step 6: Final answer
    x = 139,277.70

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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.