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Finding the Fourth Proportional to 148,358.97, 222,573.47 and 48,518.78

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Solution

The fourth proportional to 148,358.97, 222,573.47 and 48,518.78 is: 72,789.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,358.97 : 222,573.47 = 48,518.78 : x
  2. Step 2: Convert to fraction form
    148,358.97/222,573.47 = 48,518.78/x
  3. Step 3: Cross multiply
    148,358.97x = 222,573.47 × 48,518.78
  4. Step 4: Simplify right side
    148,358.97x = 10,798,991,869.31
  5. Step 5: Solve for x
    x = 10,798,991,869.31/148,358.97
  6. Step 6: Final answer
    x = 72,789.61

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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.