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Finding the Fourth Proportional to 221,672.48, 332,555.44 and 71,901.11

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Solution

The fourth proportional to 221,672.48, 332,555.44 and 71,901.11 is: 107,866.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,672.48 : 332,555.44 = 71,901.11 : x
  2. Step 2: Convert to fraction form
    221,672.48/332,555.44 = 71,901.11/x
  3. Step 3: Cross multiply
    221,672.48x = 332,555.44 × 71,901.11
  4. Step 4: Simplify right side
    221,672.48x = 23,911,105,924.17
  5. Step 5: Solve for x
    x = 23,911,105,924.17/221,672.48
  6. Step 6: Final answer
    x = 107,866.82

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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.