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Finding the Fourth Proportional to 221,799.42, 332,663.49 and 61,879.50

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Solution

The fourth proportional to 221,799.42, 332,663.49 and 61,879.50 is: 92,809.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,799.42 : 332,663.49 = 61,879.50 : x
  2. Step 2: Convert to fraction form
    221,799.42/332,663.49 = 61,879.50/x
  3. Step 3: Cross multiply
    221,799.42x = 332,663.49 × 61,879.50
  4. Step 4: Simplify right side
    221,799.42x = 20,585,050,429.46
  5. Step 5: Solve for x
    x = 20,585,050,429.46/221,799.42
  6. Step 6: Final answer
    x = 92,809.31

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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.