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Finding the Fourth Proportional to 203,153.68, 280,258.99 and 131,556.76

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Solution

The fourth proportional to 203,153.68, 280,258.99 and 131,556.76 is: 181,488.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,153.68 : 280,258.99 = 131,556.76 : x
  2. Step 2: Convert to fraction form
    203,153.68/280,258.99 = 131,556.76/x
  3. Step 3: Cross multiply
    203,153.68x = 280,258.99 × 131,556.76
  4. Step 4: Simplify right side
    203,153.68x = 36,869,964,685.27
  5. Step 5: Solve for x
    x = 36,869,964,685.27/203,153.68
  6. Step 6: Final answer
    x = 181,488.05

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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.