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Finding the Fourth Proportional to 110,559.60, 165,715.20 and 43,981.65

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Solution

The fourth proportional to 110,559.60, 165,715.20 and 43,981.65 is: 65,923.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,559.60 : 165,715.20 = 43,981.65 : x
  2. Step 2: Convert to fraction form
    110,559.60/165,715.20 = 43,981.65/x
  3. Step 3: Cross multiply
    110,559.60x = 165,715.20 × 43,981.65
  4. Step 4: Simplify right side
    110,559.60x = 7,288,427,926.08
  5. Step 5: Solve for x
    x = 7,288,427,926.08/110,559.60
  6. Step 6: Final answer
    x = 65,923.07

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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.