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Finding the Fourth Proportional to 72,866.39, 109,303.46 and 22,950.38

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Solution

The fourth proportional to 72,866.39, 109,303.46 and 22,950.38 is: 34,426.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,866.39 : 109,303.46 = 22,950.38 : x
  2. Step 2: Convert to fraction form
    72,866.39/109,303.46 = 22,950.38/x
  3. Step 3: Cross multiply
    72,866.39x = 109,303.46 × 22,950.38
  4. Step 4: Simplify right side
    72,866.39x = 2,508,555,281.05
  5. Step 5: Solve for x
    x = 2,508,555,281.05/72,866.39
  6. Step 6: Final answer
    x = 34,426.78

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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.