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Finding the Fourth Proportional to 109,472.88, 164,396.94 and 67,600.68

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Solution

The fourth proportional to 109,472.88, 164,396.94 and 67,600.68 is: 101,516.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,472.88 : 164,396.94 = 67,600.68 : x
  2. Step 2: Convert to fraction form
    109,472.88/164,396.94 = 67,600.68/x
  3. Step 3: Cross multiply
    109,472.88x = 164,396.94 × 67,600.68
  4. Step 4: Simplify right side
    109,472.88x = 11,113,344,933.92
  5. Step 5: Solve for x
    x = 11,113,344,933.92/109,472.88
  6. Step 6: Final answer
    x = 101,516.88

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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.