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Finding the Fourth Proportional to 124,951.34, 172,435.38 and 68,363.94

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Solution

The fourth proportional to 124,951.34, 172,435.38 and 68,363.94 is: 94,343.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,951.34 : 172,435.38 = 68,363.94 : x
  2. Step 2: Convert to fraction form
    124,951.34/172,435.38 = 68,363.94/x
  3. Step 3: Cross multiply
    124,951.34x = 172,435.38 × 68,363.94
  4. Step 4: Simplify right side
    124,951.34x = 11,788,361,972.20
  5. Step 5: Solve for x
    x = 11,788,361,972.20/124,951.34
  6. Step 6: Final answer
    x = 94,343.62

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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.