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Finding the Fourth Proportional to 318,542.04, 439,578.42 and 175,301.88

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Solution

The fourth proportional to 318,542.04, 439,578.42 and 175,301.88 is: 241,911.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,542.04 : 439,578.42 = 175,301.88 : x
  2. Step 2: Convert to fraction form
    318,542.04/439,578.42 = 175,301.88/x
  3. Step 3: Cross multiply
    318,542.04x = 439,578.42 × 175,301.88
  4. Step 4: Simplify right side
    318,542.04x = 77,058,923,433.43
  5. Step 5: Solve for x
    x = 77,058,923,433.43/318,542.04
  6. Step 6: Final answer
    x = 241,911.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.