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Finding the Fourth Proportional to 173,821.80, 260,732.70 and 68,627.10

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Solution

The fourth proportional to 173,821.80, 260,732.70 and 68,627.10 is: 102,940.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,821.80 : 260,732.70 = 68,627.10 : x
  2. Step 2: Convert to fraction form
    173,821.80/260,732.70 = 68,627.10/x
  3. Step 3: Cross multiply
    173,821.80x = 260,732.70 × 68,627.10
  4. Step 4: Simplify right side
    173,821.80x = 17,893,329,076.17
  5. Step 5: Solve for x
    x = 17,893,329,076.17/173,821.80
  6. Step 6: Final answer
    x = 102,940.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.