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Finding the Fourth Proportional to 448,671.89, 672,862.26 and 149,072.03

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Solution

The fourth proportional to 448,671.89, 672,862.26 and 149,072.03 is: 223,559.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,671.89 : 672,862.26 = 149,072.03 : x
  2. Step 2: Convert to fraction form
    448,671.89/672,862.26 = 149,072.03/x
  3. Step 3: Cross multiply
    448,671.89x = 672,862.26 × 149,072.03
  4. Step 4: Simplify right side
    448,671.89x = 100,304,939,644.28
  5. Step 5: Solve for x
    x = 100,304,939,644.28/448,671.89
  6. Step 6: Final answer
    x = 223,559.67

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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.