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Finding the Fourth Proportional to 55,452.80, 83,033.40 and 40,581.20

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Solution

The fourth proportional to 55,452.80, 83,033.40 and 40,581.20 is: 60,765.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,452.80 : 83,033.40 = 40,581.20 : x
  2. Step 2: Convert to fraction form
    55,452.80/83,033.40 = 40,581.20/x
  3. Step 3: Cross multiply
    55,452.80x = 83,033.40 × 40,581.20
  4. Step 4: Simplify right side
    55,452.80x = 3,369,595,012.08
  5. Step 5: Solve for x
    x = 3,369,595,012.08/55,452.80
  6. Step 6: Final answer
    x = 60,765.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.