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Finding the Fourth Proportional to 205,791.14, 308,698.72 and 79,432.04

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Solution

The fourth proportional to 205,791.14, 308,698.72 and 79,432.04 is: 119,152.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,791.14 : 308,698.72 = 79,432.04 : x
  2. Step 2: Convert to fraction form
    205,791.14/308,698.72 = 79,432.04/x
  3. Step 3: Cross multiply
    205,791.14x = 308,698.72 × 79,432.04
  4. Step 4: Simplify right side
    205,791.14x = 24,520,569,074.99
  5. Step 5: Solve for x
    x = 24,520,569,074.99/205,791.14
  6. Step 6: Final answer
    x = 119,152.70

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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.