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Finding the Fourth Proportional to 49,839.60, 74,710.80 and 44,590.80

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Solution

The fourth proportional to 49,839.60, 74,710.80 and 44,590.80 is: 66,842.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,839.60 : 74,710.80 = 44,590.80 : x
  2. Step 2: Convert to fraction form
    49,839.60/74,710.80 = 44,590.80/x
  3. Step 3: Cross multiply
    49,839.60x = 74,710.80 × 44,590.80
  4. Step 4: Simplify right side
    49,839.60x = 3,331,414,340.64
  5. Step 5: Solve for x
    x = 3,331,414,340.64/49,839.60
  6. Step 6: Final answer
    x = 66,842.72

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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.