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Finding the Fourth Proportional to 80,647.85, 111,287.71 and 44,835.68

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Solution

The fourth proportional to 80,647.85, 111,287.71 and 44,835.68 is: 61,869.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,647.85 : 111,287.71 = 44,835.68 : x
  2. Step 2: Convert to fraction form
    80,647.85/111,287.71 = 44,835.68/x
  3. Step 3: Cross multiply
    80,647.85x = 111,287.71 × 44,835.68
  4. Step 4: Simplify right side
    80,647.85x = 4,989,660,153.49
  5. Step 5: Solve for x
    x = 4,989,660,153.49/80,647.85
  6. Step 6: Final answer
    x = 61,869.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.