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Finding the Fourth Proportional to 125,652.40, 173,401.65 and 68,291.73

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Solution

The fourth proportional to 125,652.40, 173,401.65 and 68,291.73 is: 94,243.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,652.40 : 173,401.65 = 68,291.73 : x
  2. Step 2: Convert to fraction form
    125,652.40/173,401.65 = 68,291.73/x
  3. Step 3: Cross multiply
    125,652.40x = 173,401.65 × 68,291.73
  4. Step 4: Simplify right side
    125,652.40x = 11,841,898,663.35
  5. Step 5: Solve for x
    x = 11,841,898,663.35/125,652.40
  6. Step 6: Final answer
    x = 94,243.31

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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.