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Finding the Fourth Proportional to 45,756.80, 68,635.20 and 44,007.20

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Solution

The fourth proportional to 45,756.80, 68,635.20 and 44,007.20 is: 66,010.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,756.80 : 68,635.20 = 44,007.20 : x
  2. Step 2: Convert to fraction form
    45,756.80/68,635.20 = 44,007.20/x
  3. Step 3: Cross multiply
    45,756.80x = 68,635.20 × 44,007.20
  4. Step 4: Simplify right side
    45,756.80x = 3,020,442,973.44
  5. Step 5: Solve for x
    x = 3,020,442,973.44/45,756.80
  6. Step 6: Final answer
    x = 66,010.80

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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.