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Finding the Fourth Proportional to 448,077.63, 672,116.46 and 132,509.97

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Solution

The fourth proportional to 448,077.63, 672,116.46 and 132,509.97 is: 198,764.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,077.63 : 672,116.46 = 132,509.97 : x
  2. Step 2: Convert to fraction form
    448,077.63/672,116.46 = 132,509.97/x
  3. Step 3: Cross multiply
    448,077.63x = 672,116.46 × 132,509.97
  4. Step 4: Simplify right side
    448,077.63x = 89,062,131,951.11
  5. Step 5: Solve for x
    x = 89,062,131,951.11/448,077.63
  6. Step 6: Final answer
    x = 198,764.96

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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.