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Finding the Fourth Proportional to 167,616.63, 231,319.26 and 103,974.93

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Solution

The fourth proportional to 167,616.63, 231,319.26 and 103,974.93 is: 143,490.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,616.63 : 231,319.26 = 103,974.93 : x
  2. Step 2: Convert to fraction form
    167,616.63/231,319.26 = 103,974.93/x
  3. Step 3: Cross multiply
    167,616.63x = 231,319.26 × 103,974.93
  4. Step 4: Simplify right side
    167,616.63x = 24,051,403,866.15
  5. Step 5: Solve for x
    x = 24,051,403,866.15/167,616.63
  6. Step 6: Final answer
    x = 143,490.56

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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.