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Finding the Fourth Proportional to 125,649.82, 173,398.09 and 68,289.14

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Solution

The fourth proportional to 125,649.82, 173,398.09 and 68,289.14 is: 94,239.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,649.82 : 173,398.09 = 68,289.14 : x
  2. Step 2: Convert to fraction form
    125,649.82/173,398.09 = 68,289.14/x
  3. Step 3: Cross multiply
    125,649.82x = 173,398.09 × 68,289.14
  4. Step 4: Simplify right side
    125,649.82x = 11,841,206,443.74
  5. Step 5: Solve for x
    x = 11,841,206,443.74/125,649.82
  6. Step 6: Final answer
    x = 94,239.74

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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.