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Finding the Fourth Proportional to 188,452.80, 282,679.20 and 83,217.60

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Solution

The fourth proportional to 188,452.80, 282,679.20 and 83,217.60 is: 124,826.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,452.80 : 282,679.20 = 83,217.60 : x
  2. Step 2: Convert to fraction form
    188,452.80/282,679.20 = 83,217.60/x
  3. Step 3: Cross multiply
    188,452.80x = 282,679.20 × 83,217.60
  4. Step 4: Simplify right side
    188,452.80x = 23,523,884,593.92
  5. Step 5: Solve for x
    x = 23,523,884,593.92/188,452.80
  6. Step 6: Final answer
    x = 124,826.40

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1.5x scale

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.