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Finding the Fourth Proportional to 199,321.62, 275,058.75 and 108,677.76

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Solution

The fourth proportional to 199,321.62, 275,058.75 and 108,677.76 is: 149,972.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,321.62 : 275,058.75 = 108,677.76 : x
  2. Step 2: Convert to fraction form
    199,321.62/275,058.75 = 108,677.76/x
  3. Step 3: Cross multiply
    199,321.62x = 275,058.75 × 108,677.76
  4. Step 4: Simplify right side
    199,321.62x = 29,892,768,818.40
  5. Step 5: Solve for x
    x = 29,892,768,818.40/199,321.62
  6. Step 6: Final answer
    x = 149,972.54

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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.