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Finding the Fourth Proportional to 110,545.20, 165,817.80 and 27,439.20

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Solution

The fourth proportional to 110,545.20, 165,817.80 and 27,439.20 is: 41,158.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,545.20 : 165,817.80 = 27,439.20 : x
  2. Step 2: Convert to fraction form
    110,545.20/165,817.80 = 27,439.20/x
  3. Step 3: Cross multiply
    110,545.20x = 165,817.80 × 27,439.20
  4. Step 4: Simplify right side
    110,545.20x = 4,549,907,777.76
  5. Step 5: Solve for x
    x = 4,549,907,777.76/110,545.20
  6. Step 6: Final answer
    x = 41,158.80

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1.5x scale

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.