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Finding the Fourth Proportional to 221,908.90, 332,874.15 and 61,984.66

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Solution

The fourth proportional to 221,908.90, 332,874.15 and 61,984.66 is: 92,980.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,908.90 : 332,874.15 = 61,984.66 : x
  2. Step 2: Convert to fraction form
    221,908.90/332,874.15 = 61,984.66/x
  3. Step 3: Cross multiply
    221,908.90x = 332,874.15 × 61,984.66
  4. Step 4: Simplify right side
    221,908.90x = 20,633,091,010.54
  5. Step 5: Solve for x
    x = 20,633,091,010.54/221,908.90
  6. Step 6: Final answer
    x = 92,980.01

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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.