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Finding the Fourth Proportional to 110,712.40, 166,068.60 and 63,910.60

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Solution

The fourth proportional to 110,712.40, 166,068.60 and 63,910.60 is: 95,865.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,712.40 : 166,068.60 = 63,910.60 : x
  2. Step 2: Convert to fraction form
    110,712.40/166,068.60 = 63,910.60/x
  3. Step 3: Cross multiply
    110,712.40x = 166,068.60 × 63,910.60
  4. Step 4: Simplify right side
    110,712.40x = 10,613,543,867.16
  5. Step 5: Solve for x
    x = 10,613,543,867.16/110,712.40
  6. Step 6: Final answer
    x = 95,865.90

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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.