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Finding the Fourth Proportional to 80,652.75, 111,300.80 and 45,324.75

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Solution

The fourth proportional to 80,652.75, 111,300.80 and 45,324.75 is: 62,548.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,652.75 : 111,300.80 = 45,324.75 : x
  2. Step 2: Convert to fraction form
    80,652.75/111,300.80 = 45,324.75/x
  3. Step 3: Cross multiply
    80,652.75x = 111,300.80 × 45,324.75
  4. Step 4: Simplify right side
    80,652.75x = 5,044,680,708.18
  5. Step 5: Solve for x
    x = 5,044,680,708.18/80,652.75
  6. Step 6: Final answer
    x = 62,548.16

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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.