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Finding the Fourth Proportional to 122,737.88, 169,376.66 and 69,022.88

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Solution

The fourth proportional to 122,737.88, 169,376.66 and 69,022.88 is: 95,250.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,737.88 : 169,376.66 = 69,022.88 : x
  2. Step 2: Convert to fraction form
    122,737.88/169,376.66 = 69,022.88/x
  3. Step 3: Cross multiply
    122,737.88x = 169,376.66 × 69,022.88
  4. Step 4: Simplify right side
    122,737.88x = 11,690,865,301.42
  5. Step 5: Solve for x
    x = 11,690,865,301.42/122,737.88
  6. Step 6: Final answer
    x = 95,250.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.