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Finding the Fourth Proportional to 448,410.29, 672,617.86 and 132,869.93

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Solution

The fourth proportional to 448,410.29, 672,617.86 and 132,869.93 is: 199,305.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,410.29 : 672,617.86 = 132,869.93 : x
  2. Step 2: Convert to fraction form
    448,410.29/672,617.86 = 132,869.93/x
  3. Step 3: Cross multiply
    448,410.29x = 672,617.86 × 132,869.93
  4. Step 4: Simplify right side
    448,410.29x = 89,370,687,974.95
  5. Step 5: Solve for x
    x = 89,370,687,974.95/448,410.29
  6. Step 6: Final answer
    x = 199,305.61

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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.