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Finding the Fourth Proportional to 448,072.18, 672,239.49 and 132,537.49

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Solution

The fourth proportional to 448,072.18, 672,239.49 and 132,537.49 is: 198,845.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,072.18 : 672,239.49 = 132,537.49 : x
  2. Step 2: Convert to fraction form
    448,072.18/672,239.49 = 132,537.49/x
  3. Step 3: Cross multiply
    448,072.18x = 672,239.49 × 132,537.49
  4. Step 4: Simplify right side
    448,072.18x = 89,096,934,683.48
  5. Step 5: Solve for x
    x = 89,096,934,683.48/448,072.18
  6. Step 6: Final answer
    x = 198,845.05

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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.