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Finding the Fourth Proportional to 82,763.52, 124,115.20 and 30,160.64

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Solution

The fourth proportional to 82,763.52, 124,115.20 and 30,160.64 is: 45,230.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,763.52 : 124,115.20 = 30,160.64 : x
  2. Step 2: Convert to fraction form
    82,763.52/124,115.20 = 30,160.64/x
  3. Step 3: Cross multiply
    82,763.52x = 124,115.20 × 30,160.64
  4. Step 4: Simplify right side
    82,763.52x = 3,743,393,865.73
  5. Step 5: Solve for x
    x = 3,743,393,865.73/82,763.52
  6. Step 6: Final answer
    x = 45,230.00

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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.