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Finding the Fourth Proportional to 448,484.72, 672,612.25 and 132,867.82

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Solution

The fourth proportional to 448,484.72, 672,612.25 and 132,867.82 is: 199,267.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,484.72 : 672,612.25 = 132,867.82 : x
  2. Step 2: Convert to fraction form
    448,484.72/672,612.25 = 132,867.82/x
  3. Step 3: Cross multiply
    448,484.72x = 672,612.25 × 132,867.82
  4. Step 4: Simplify right side
    448,484.72x = 89,368,523,362.80
  5. Step 5: Solve for x
    x = 89,368,523,362.80/448,484.72
  6. Step 6: Final answer
    x = 199,267.71

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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.