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Finding the Fourth Proportional to 376,301.80, 563,991.90 and 165,716.20

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Solution

The fourth proportional to 376,301.80, 563,991.90 and 165,716.20 is: 248,371.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,301.80 : 563,991.90 = 165,716.20 : x
  2. Step 2: Convert to fraction form
    376,301.80/563,991.90 = 165,716.20/x
  3. Step 3: Cross multiply
    376,301.80x = 563,991.90 × 165,716.20
  4. Step 4: Simplify right side
    376,301.80x = 93,462,594,498.78
  5. Step 5: Solve for x
    x = 93,462,594,498.78/376,301.80
  6. Step 6: Final answer
    x = 248,371.37

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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.