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Finding the Fourth Proportional to 221,908.96, 332,853.72 and 61,985.84

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Solution

The fourth proportional to 221,908.96, 332,853.72 and 61,985.84 is: 92,976.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,908.96 : 332,853.72 = 61,985.84 : x
  2. Step 2: Convert to fraction form
    221,908.96/332,853.72 = 61,985.84/x
  3. Step 3: Cross multiply
    221,908.96x = 332,853.72 × 61,985.84
  4. Step 4: Simplify right side
    221,908.96x = 20,632,217,431.32
  5. Step 5: Solve for x
    x = 20,632,217,431.32/221,908.96
  6. Step 6: Final answer
    x = 92,976.04

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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.