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Finding the Fourth Proportional to 125,248.24, 172,841.25 and 68,659.30

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Solution

The fourth proportional to 125,248.24, 172,841.25 and 68,659.30 is: 94,749.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,248.24 : 172,841.25 = 68,659.30 : x
  2. Step 2: Convert to fraction form
    125,248.24/172,841.25 = 68,659.30/x
  3. Step 3: Cross multiply
    125,248.24x = 172,841.25 × 68,659.30
  4. Step 4: Simplify right side
    125,248.24x = 11,867,159,236.13
  5. Step 5: Solve for x
    x = 11,867,159,236.13/125,248.24
  6. Step 6: Final answer
    x = 94,749.11

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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.