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Finding the Fourth Proportional to 110,999.10, 166,498.65 and 66,092.70

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Solution

The fourth proportional to 110,999.10, 166,498.65 and 66,092.70 is: 99,139.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,999.10 : 166,498.65 = 66,092.70 : x
  2. Step 2: Convert to fraction form
    110,999.10/166,498.65 = 66,092.70/x
  3. Step 3: Cross multiply
    110,999.10x = 166,498.65 × 66,092.70
  4. Step 4: Simplify right side
    110,999.10x = 11,004,345,324.86
  5. Step 5: Solve for x
    x = 11,004,345,324.86/110,999.10
  6. Step 6: Final answer
    x = 99,139.05

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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.