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Finding the Fourth Proportional to 448,525.21, 672,673.17 and 132,908.30

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Solution

The fourth proportional to 448,525.21, 672,673.17 and 132,908.30 is: 199,328.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,525.21 : 672,673.17 = 132,908.30 : x
  2. Step 2: Convert to fraction form
    448,525.21/672,673.17 = 132,908.30/x
  3. Step 3: Cross multiply
    448,525.21x = 672,673.17 × 132,908.30
  4. Step 4: Simplify right side
    448,525.21x = 89,403,846,815.77
  5. Step 5: Solve for x
    x = 89,403,846,815.77/448,525.21
  6. Step 6: Final answer
    x = 199,328.48

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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.