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Finding the Fourth Proportional to 80,534.74, 111,139.44 and 44,728.10

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Solution

The fourth proportional to 80,534.74, 111,139.44 and 44,728.10 is: 61,725.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,534.74 : 111,139.44 = 44,728.10 : x
  2. Step 2: Convert to fraction form
    80,534.74/111,139.44 = 44,728.10/x
  3. Step 3: Cross multiply
    80,534.74x = 111,139.44 × 44,728.10
  4. Step 4: Simplify right side
    80,534.74x = 4,971,055,986.26
  5. Step 5: Solve for x
    x = 4,971,055,986.26/80,534.74
  6. Step 6: Final answer
    x = 61,725.61

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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.