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Finding the Fourth Proportional to 72,871.76, 109,297.26 and 22,950.56

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Solution

The fourth proportional to 72,871.76, 109,297.26 and 22,950.56 is: 34,422.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,871.76 : 109,297.26 = 22,950.56 : x
  2. Step 2: Convert to fraction form
    72,871.76/109,297.26 = 22,950.56/x
  3. Step 3: Cross multiply
    72,871.76x = 109,297.26 × 22,950.56
  4. Step 4: Simplify right side
    72,871.76x = 2,508,433,596.71
  5. Step 5: Solve for x
    x = 2,508,433,596.71/72,871.76
  6. Step 6: Final answer
    x = 34,422.57

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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.