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Finding the Fourth Proportional to 188,245.20, 282,108.60 and 124,885.20

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Solution

The fourth proportional to 188,245.20, 282,108.60 and 124,885.20 is: 187,155.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,245.20 : 282,108.60 = 124,885.20 : x
  2. Step 2: Convert to fraction form
    188,245.20/282,108.60 = 124,885.20/x
  3. Step 3: Cross multiply
    188,245.20x = 282,108.60 × 124,885.20
  4. Step 4: Simplify right side
    188,245.20x = 35,231,188,932.72
  5. Step 5: Solve for x
    x = 35,231,188,932.72/188,245.20
  6. Step 6: Final answer
    x = 187,155.84

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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.