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Finding the Fourth Proportional to 117,480.35, 162,123.12 and 69,743.27

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Solution

The fourth proportional to 117,480.35, 162,123.12 and 69,743.27 is: 96,245.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,480.35 : 162,123.12 = 69,743.27 : x
  2. Step 2: Convert to fraction form
    117,480.35/162,123.12 = 69,743.27/x
  3. Step 3: Cross multiply
    117,480.35x = 162,123.12 × 69,743.27
  4. Step 4: Simplify right side
    117,480.35x = 11,306,995,720.79
  5. Step 5: Solve for x
    x = 11,306,995,720.79/117,480.35
  6. Step 6: Final answer
    x = 96,245.85

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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.