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Finding the Fourth Proportional to 110,001.96, 165,003.57 and 39,879.45

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Solution

The fourth proportional to 110,001.96, 165,003.57 and 39,879.45 is: 59,819.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,001.96 : 165,003.57 = 39,879.45 : x
  2. Step 2: Convert to fraction form
    110,001.96/165,003.57 = 39,879.45/x
  3. Step 3: Cross multiply
    110,001.96x = 165,003.57 × 39,879.45
  4. Step 4: Simplify right side
    110,001.96x = 6,580,251,619.64
  5. Step 5: Solve for x
    x = 6,580,251,619.64/110,001.96
  6. Step 6: Final answer
    x = 59,819.40

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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.