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Finding the Fourth Proportional to 74,590.80, 111,853.80 and 24,651.60

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Solution

The fourth proportional to 74,590.80, 111,853.80 and 24,651.60 is: 36,966.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,590.80 : 111,853.80 = 24,651.60 : x
  2. Step 2: Convert to fraction form
    74,590.80/111,853.80 = 24,651.60/x
  3. Step 3: Cross multiply
    74,590.80x = 111,853.80 × 24,651.60
  4. Step 4: Simplify right side
    74,590.80x = 2,757,375,136.08
  5. Step 5: Solve for x
    x = 2,757,375,136.08/74,590.80
  6. Step 6: Final answer
    x = 36,966.69

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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.