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Finding the Fourth Proportional to 448,518.06, 672,890.70 and 149,000.12

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Solution

The fourth proportional to 448,518.06, 672,890.70 and 149,000.12 is: 223,537.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,518.06 : 672,890.70 = 149,000.12 : x
  2. Step 2: Convert to fraction form
    448,518.06/672,890.70 = 149,000.12/x
  3. Step 3: Cross multiply
    448,518.06x = 672,890.70 × 149,000.12
  4. Step 4: Simplify right side
    448,518.06x = 100,260,795,046.88
  5. Step 5: Solve for x
    x = 100,260,795,046.88/448,518.06
  6. Step 6: Final answer
    x = 223,537.92

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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.