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Finding the Fourth Proportional to 225,451, 311,132.16 and 124,849

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Solution

The fourth proportional to 225,451, 311,132.16 and 124,849 is: 172,297.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,451 : 311,132.16 = 124,849 : x
  2. Step 2: Convert to fraction form
    225,451/311,132.16 = 124,849/x
  3. Step 3: Cross multiply
    225,451x = 311,132.16 × 124,849
  4. Step 4: Simplify right side
    225,451x = 38,844,539,043.84
  5. Step 5: Solve for x
    x = 38,844,539,043.84/225,451
  6. Step 6: Final answer
    x = 172,297.04

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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.