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Finding the Fourth Proportional to 148,212.80, 222,351.04 and 85,062.08

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Solution

The fourth proportional to 148,212.80, 222,351.04 and 85,062.08 is: 127,611.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,212.80 : 222,351.04 = 85,062.08 : x
  2. Step 2: Convert to fraction form
    148,212.80/222,351.04 = 85,062.08/x
  3. Step 3: Cross multiply
    148,212.80x = 222,351.04 × 85,062.08
  4. Step 4: Simplify right side
    148,212.80x = 18,913,641,952.56
  5. Step 5: Solve for x
    x = 18,913,641,952.56/148,212.80
  6. Step 6: Final answer
    x = 127,611.39

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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.