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Finding the Fourth Proportional to 448,175.53, 672,394.97 and 132,640.64

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Solution

The fourth proportional to 448,175.53, 672,394.97 and 132,640.64 is: 198,999.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,175.53 : 672,394.97 = 132,640.64 : x
  2. Step 2: Convert to fraction form
    448,175.53/672,394.97 = 132,640.64/x
  3. Step 3: Cross multiply
    448,175.53x = 672,394.97 × 132,640.64
  4. Step 4: Simplify right side
    448,175.53x = 89,186,898,644.69
  5. Step 5: Solve for x
    x = 89,186,898,644.69/448,175.53
  6. Step 6: Final answer
    x = 198,999.93

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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.