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Finding the Fourth Proportional to 111,200.90, 166,801.35 and 63,961.70

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Solution

The fourth proportional to 111,200.90, 166,801.35 and 63,961.70 is: 95,942.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,200.90 : 166,801.35 = 63,961.70 : x
  2. Step 2: Convert to fraction form
    111,200.90/166,801.35 = 63,961.70/x
  3. Step 3: Cross multiply
    111,200.90x = 166,801.35 × 63,961.70
  4. Step 4: Simplify right side
    111,200.90x = 10,668,897,908.30
  5. Step 5: Solve for x
    x = 10,668,897,908.30/111,200.90
  6. Step 6: Final answer
    x = 95,942.55

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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.