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Finding the Fourth Proportional to 271,887.95, 407,210.72 and 129,832.73

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Solution

The fourth proportional to 271,887.95, 407,210.72 and 129,832.73 is: 194,452.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,887.95 : 407,210.72 = 129,832.73 : x
  2. Step 2: Convert to fraction form
    271,887.95/407,210.72 = 129,832.73/x
  3. Step 3: Cross multiply
    271,887.95x = 407,210.72 × 129,832.73
  4. Step 4: Simplify right side
    271,887.95x = 52,869,278,304.69
  5. Step 5: Solve for x
    x = 52,869,278,304.69/271,887.95
  6. Step 6: Final answer
    x = 194,452.45

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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.