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Finding the Fourth Proportional to 73,711.87, 110,502.34 and 28,722.81

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Solution

The fourth proportional to 73,711.87, 110,502.34 and 28,722.81 is: 43,058.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,711.87 : 110,502.34 = 28,722.81 : x
  2. Step 2: Convert to fraction form
    73,711.87/110,502.34 = 28,722.81/x
  3. Step 3: Cross multiply
    73,711.87x = 110,502.34 × 28,722.81
  4. Step 4: Simplify right side
    73,711.87x = 3,173,937,716.38
  5. Step 5: Solve for x
    x = 3,173,937,716.38/73,711.87
  6. Step 6: Final answer
    x = 43,058.71

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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.