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Finding the Fourth Proportional to 448,076.64, 672,114.94 and 132,508.96

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Solution

The fourth proportional to 448,076.64, 672,114.94 and 132,508.96 is: 198,763.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,076.64 : 672,114.94 = 132,508.96 : x
  2. Step 2: Convert to fraction form
    448,076.64/672,114.94 = 132,508.96/x
  3. Step 3: Cross multiply
    448,076.64x = 672,114.94 × 132,508.96
  4. Step 4: Simplify right side
    448,076.64x = 89,061,251,699.86
  5. Step 5: Solve for x
    x = 89,061,251,699.86/448,076.64
  6. Step 6: Final answer
    x = 198,763.43

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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.