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Finding the Fourth Proportional to 197,555, 272,625.88 and 106,910.97

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Solution

The fourth proportional to 197,555, 272,625.88 and 106,910.97 is: 147,537.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,555 : 272,625.88 = 106,910.97 : x
  2. Step 2: Convert to fraction form
    197,555/272,625.88 = 106,910.97/x
  3. Step 3: Cross multiply
    197,555x = 272,625.88 × 106,910.97
  4. Step 4: Simplify right side
    197,555x = 29,146,697,277.90
  5. Step 5: Solve for x
    x = 29,146,697,277.90/197,555
  6. Step 6: Final answer
    x = 147,537.13

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1.5x scale

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.