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Finding the Fourth Proportional to 448,081.63, 672,122.45 and 132,513.96

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Solution

The fourth proportional to 448,081.63, 672,122.45 and 132,513.96 is: 198,770.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,081.63 : 672,122.45 = 132,513.96 : x
  2. Step 2: Convert to fraction form
    448,081.63/672,122.45 = 132,513.96/x
  3. Step 3: Cross multiply
    448,081.63x = 672,122.45 × 132,513.96
  4. Step 4: Simplify right side
    448,081.63x = 89,065,607,454.40
  5. Step 5: Solve for x
    x = 89,065,607,454.40/448,081.63
  6. Step 6: Final answer
    x = 198,770.94

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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.