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Finding the Fourth Proportional to 172,195.97, 258,313.30 and 45,841.14

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Solution

The fourth proportional to 172,195.97, 258,313.30 and 45,841.14 is: 68,766.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,195.97 : 258,313.30 = 45,841.14 : x
  2. Step 2: Convert to fraction form
    172,195.97/258,313.30 = 45,841.14/x
  3. Step 3: Cross multiply
    172,195.97x = 258,313.30 × 45,841.14
  4. Step 4: Simplify right side
    172,195.97x = 11,841,374,628.39
  5. Step 5: Solve for x
    x = 11,841,374,628.39/172,195.97
  6. Step 6: Final answer
    x = 68,766.85

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1.5x scale

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.