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Finding the Fourth Proportional to 448,542.01, 672,942.89 and 133,006.51

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Solution

The fourth proportional to 448,542.01, 672,942.89 and 133,006.51 is: 199,548.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,542.01 : 672,942.89 = 133,006.51 : x
  2. Step 2: Convert to fraction form
    448,542.01/672,942.89 = 133,006.51/x
  3. Step 3: Cross multiply
    448,542.01x = 672,942.89 × 133,006.51
  4. Step 4: Simplify right side
    448,542.01x = 89,505,785,228.21
  5. Step 5: Solve for x
    x = 89,505,785,228.21/448,542.01
  6. Step 6: Final answer
    x = 199,548.28

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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.