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Finding the Fourth Proportional to 121,393.08, 167,506.38 and 73,648.44

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Solution

The fourth proportional to 121,393.08, 167,506.38 and 73,648.44 is: 101,625.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,393.08 : 167,506.38 = 73,648.44 : x
  2. Step 2: Convert to fraction form
    121,393.08/167,506.38 = 73,648.44/x
  3. Step 3: Cross multiply
    121,393.08x = 167,506.38 × 73,648.44
  4. Step 4: Simplify right side
    121,393.08x = 12,336,583,577.05
  5. Step 5: Solve for x
    x = 12,336,583,577.05/121,393.08
  6. Step 6: Final answer
    x = 101,625.10

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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.