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Finding the Fourth Proportional to 148,481.40, 222,698.40 and 43,275.76

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Solution

The fourth proportional to 148,481.40, 222,698.40 and 43,275.76 is: 64,906.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,481.40 : 222,698.40 = 43,275.76 : x
  2. Step 2: Convert to fraction form
    148,481.40/222,698.40 = 43,275.76/x
  3. Step 3: Cross multiply
    148,481.40x = 222,698.40 × 43,275.76
  4. Step 4: Simplify right side
    148,481.40x = 9,637,442,510.78
  5. Step 5: Solve for x
    x = 9,637,442,510.78/148,481.40
  6. Step 6: Final answer
    x = 64,906.73

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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.