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Finding the Fourth Proportional to 448,562.30, 672,973.05 and 133,026.80

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Solution

The fourth proportional to 448,562.30, 672,973.05 and 133,026.80 is: 199,578.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,562.30 : 672,973.05 = 133,026.80 : x
  2. Step 2: Convert to fraction form
    448,562.30/672,973.05 = 133,026.80/x
  3. Step 3: Cross multiply
    448,562.30x = 672,973.05 × 133,026.80
  4. Step 4: Simplify right side
    448,562.30x = 89,523,451,327.74
  5. Step 5: Solve for x
    x = 89,523,451,327.74/448,562.30
  6. Step 6: Final answer
    x = 199,578.63

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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.