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Finding the Fourth Proportional to 149,279.98, 205,993.92 and 88,016.44

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Solution

The fourth proportional to 149,279.98, 205,993.92 and 88,016.44 is: 121,455.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,279.98 : 205,993.92 = 88,016.44 : x
  2. Step 2: Convert to fraction form
    149,279.98/205,993.92 = 88,016.44/x
  3. Step 3: Cross multiply
    149,279.98x = 205,993.92 × 88,016.44
  4. Step 4: Simplify right side
    149,279.98x = 18,130,851,500.04
  5. Step 5: Solve for x
    x = 18,130,851,500.04/149,279.98
  6. Step 6: Final answer
    x = 121,455.35

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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.