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Finding the Fourth Proportional to 125,843.08, 173,659.96 and 71,405.16

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Solution

The fourth proportional to 125,843.08, 173,659.96 and 71,405.16 is: 98,537.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,843.08 : 173,659.96 = 71,405.16 : x
  2. Step 2: Convert to fraction form
    125,843.08/173,659.96 = 71,405.16/x
  3. Step 3: Cross multiply
    125,843.08x = 173,659.96 × 71,405.16
  4. Step 4: Simplify right side
    125,843.08x = 12,400,217,229.39
  5. Step 5: Solve for x
    x = 12,400,217,229.39/125,843.08
  6. Step 6: Final answer
    x = 98,537.14

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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.