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Finding the Fourth Proportional to 448,020.22, 672,063.15 and 178,253.77

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Solution

The fourth proportional to 448,020.22, 672,063.15 and 178,253.77 is: 267,393.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,020.22 : 672,063.15 = 178,253.77 : x
  2. Step 2: Convert to fraction form
    448,020.22/672,063.15 = 178,253.77/x
  3. Step 3: Cross multiply
    448,020.22x = 672,063.15 × 178,253.77
  4. Step 4: Simplify right side
    448,020.22x = 119,797,790,165.58
  5. Step 5: Solve for x
    x = 119,797,790,165.58/448,020.22
  6. Step 6: Final answer
    x = 267,393.71

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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.