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Finding the Fourth Proportional to 137,176.75, 189,239.97 and 88,794.29

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Solution

The fourth proportional to 137,176.75, 189,239.97 and 88,794.29 is: 122,494.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,176.75 : 189,239.97 = 88,794.29 : x
  2. Step 2: Convert to fraction form
    137,176.75/189,239.97 = 88,794.29/x
  3. Step 3: Cross multiply
    137,176.75x = 189,239.97 × 88,794.29
  4. Step 4: Simplify right side
    137,176.75x = 16,803,429,581.85
  5. Step 5: Solve for x
    x = 16,803,429,581.85/137,176.75
  6. Step 6: Final answer
    x = 122,494.73

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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.