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Finding the Fourth Proportional to 103,992.52, 143,506.37 and 58,669.90

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Solution

The fourth proportional to 103,992.52, 143,506.37 and 58,669.90 is: 80,962.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,992.52 : 143,506.37 = 58,669.90 : x
  2. Step 2: Convert to fraction form
    103,992.52/143,506.37 = 58,669.90/x
  3. Step 3: Cross multiply
    103,992.52x = 143,506.37 × 58,669.90
  4. Step 4: Simplify right side
    103,992.52x = 8,419,504,377.26
  5. Step 5: Solve for x
    x = 8,419,504,377.26/103,992.52
  6. Step 6: Final answer
    x = 80,962.60

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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.