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Finding the Fourth Proportional to 448,537.92, 672,692.24 and 132,921.12

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Solution

The fourth proportional to 448,537.92, 672,692.24 and 132,921.12 is: 199,347.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,537.92 : 672,692.24 = 132,921.12 : x
  2. Step 2: Convert to fraction form
    448,537.92/672,692.24 = 132,921.12/x
  3. Step 3: Cross multiply
    448,537.92x = 672,692.24 × 132,921.12
  4. Step 4: Simplify right side
    448,537.92x = 89,415,005,956.11
  5. Step 5: Solve for x
    x = 89,415,005,956.11/448,537.92
  6. Step 6: Final answer
    x = 199,347.71

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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.