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Finding the Fourth Proportional to 110,295.60, 165,526.86 and 80,790.12

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Solution

The fourth proportional to 110,295.60, 165,526.86 and 80,790.12 is: 121,246.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,295.60 : 165,526.86 = 80,790.12 : x
  2. Step 2: Convert to fraction form
    110,295.60/165,526.86 = 80,790.12/x
  3. Step 3: Cross multiply
    110,295.60x = 165,526.86 × 80,790.12
  4. Step 4: Simplify right side
    110,295.60x = 13,372,934,882.62
  5. Step 5: Solve for x
    x = 13,372,934,882.62/110,295.60
  6. Step 6: Final answer
    x = 121,246.31

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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.