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Finding the Fourth Proportional to 117,231.85, 161,761.67 and 69,477.49

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Solution

The fourth proportional to 117,231.85, 161,761.67 and 69,477.49 is: 95,868.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,231.85 : 161,761.67 = 69,477.49 : x
  2. Step 2: Convert to fraction form
    117,231.85/161,761.67 = 69,477.49/x
  3. Step 3: Cross multiply
    117,231.85x = 161,761.67 × 69,477.49
  4. Step 4: Simplify right side
    117,231.85x = 11,238,794,001.00
  5. Step 5: Solve for x
    x = 11,238,794,001.00/117,231.85
  6. Step 6: Final answer
    x = 95,868.10

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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.