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Finding the Fourth Proportional to 110,565.80, 165,891.90 and 40,450.60

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Solution

The fourth proportional to 110,565.80, 165,891.90 and 40,450.60 is: 60,691.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,565.80 : 165,891.90 = 40,450.60 : x
  2. Step 2: Convert to fraction form
    110,565.80/165,891.90 = 40,450.60/x
  3. Step 3: Cross multiply
    110,565.80x = 165,891.90 × 40,450.60
  4. Step 4: Simplify right side
    110,565.80x = 6,710,426,890.14
  5. Step 5: Solve for x
    x = 6,710,426,890.14/110,565.80
  6. Step 6: Final answer
    x = 60,691.70

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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.