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Finding the Fourth Proportional to 448,573.29, 672,745.12 and 132,956.39

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Solution

The fourth proportional to 448,573.29, 672,745.12 and 132,956.39 is: 199,400.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,573.29 : 672,745.12 = 132,956.39 : x
  2. Step 2: Convert to fraction form
    448,573.29/672,745.12 = 132,956.39/x
  3. Step 3: Cross multiply
    448,573.29x = 672,745.12 × 132,956.39
  4. Step 4: Simplify right side
    448,573.29x = 89,445,760,484.54
  5. Step 5: Solve for x
    x = 89,445,760,484.54/448,573.29
  6. Step 6: Final answer
    x = 199,400.55

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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.