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Finding the Fourth Proportional to 198,703.15, 274,209.01 and 108,058.88

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Solution

The fourth proportional to 198,703.15, 274,209.01 and 108,058.88 is: 149,120.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,703.15 : 274,209.01 = 108,058.88 : x
  2. Step 2: Convert to fraction form
    198,703.15/274,209.01 = 108,058.88/x
  3. Step 3: Cross multiply
    198,703.15x = 274,209.01 × 108,058.88
  4. Step 4: Simplify right side
    198,703.15x = 29,630,718,921.88
  5. Step 5: Solve for x
    x = 29,630,718,921.88/198,703.15
  6. Step 6: Final answer
    x = 149,120.53

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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.