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Finding the Fourth Proportional to 471,674.36, 707,622.24 and 156,131.25

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Solution

The fourth proportional to 471,674.36, 707,622.24 and 156,131.25 is: 234,233.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,674.36 : 707,622.24 = 156,131.25 : x
  2. Step 2: Convert to fraction form
    471,674.36/707,622.24 = 156,131.25/x
  3. Step 3: Cross multiply
    471,674.36x = 707,622.24 × 156,131.25
  4. Step 4: Simplify right side
    471,674.36x = 110,481,944,859
  5. Step 5: Solve for x
    x = 110,481,944,859/471,674.36
  6. Step 6: Final answer
    x = 234,233.52

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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.