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Finding the Fourth Proportional to 117,773.16, 162,469.80 and 69,992.64

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Solution

The fourth proportional to 117,773.16, 162,469.80 and 69,992.64 is: 96,555.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,773.16 : 162,469.80 = 69,992.64 : x
  2. Step 2: Convert to fraction form
    117,773.16/162,469.80 = 69,992.64/x
  3. Step 3: Cross multiply
    117,773.16x = 162,469.80 × 69,992.64
  4. Step 4: Simplify right side
    117,773.16x = 11,371,690,222.27
  5. Step 5: Solve for x
    x = 11,371,690,222.27/117,773.16
  6. Step 6: Final answer
    x = 96,555.87

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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.