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Finding the Fourth Proportional to 80,641.59, 111,289.20 and 44,832.21

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Solution

The fourth proportional to 80,641.59, 111,289.20 and 44,832.21 is: 61,870.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,641.59 : 111,289.20 = 44,832.21 : x
  2. Step 2: Convert to fraction form
    80,641.59/111,289.20 = 44,832.21/x
  3. Step 3: Cross multiply
    80,641.59x = 111,289.20 × 44,832.21
  4. Step 4: Simplify right side
    80,641.59x = 4,989,340,785.13
  5. Step 5: Solve for x
    x = 4,989,340,785.13/80,641.59
  6. Step 6: Final answer
    x = 61,870.57

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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.