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Finding the Fourth Proportional to 80,423.28, 110,945.52 and 58,879.08

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Solution

The fourth proportional to 80,423.28, 110,945.52 and 58,879.08 is: 81,224.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,423.28 : 110,945.52 = 58,879.08 : x
  2. Step 2: Convert to fraction form
    80,423.28/110,945.52 = 58,879.08/x
  3. Step 3: Cross multiply
    80,423.28x = 110,945.52 × 58,879.08
  4. Step 4: Simplify right side
    80,423.28x = 6,532,370,147.72
  5. Step 5: Solve for x
    x = 6,532,370,147.72/80,423.28
  6. Step 6: Final answer
    x = 81,224.87

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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.