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Finding the Fourth Proportional to 148,422.80, 222,893.40 and 143,757.20

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Solution

The fourth proportional to 148,422.80, 222,893.40 and 143,757.20 is: 215,886.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,422.80 : 222,893.40 = 143,757.20 : x
  2. Step 2: Convert to fraction form
    148,422.80/222,893.40 = 143,757.20/x
  3. Step 3: Cross multiply
    148,422.80x = 222,893.40 × 143,757.20
  4. Step 4: Simplify right side
    148,422.80x = 32,042,531,082.48
  5. Step 5: Solve for x
    x = 32,042,531,082.48/148,422.80
  6. Step 6: Final answer
    x = 215,886.85

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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.