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Finding the Fourth Proportional to 220,987.98, 331,493.31 and 63,239.94

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Solution

The fourth proportional to 220,987.98, 331,493.31 and 63,239.94 is: 94,863.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,987.98 : 331,493.31 = 63,239.94 : x
  2. Step 2: Convert to fraction form
    220,987.98/331,493.31 = 63,239.94/x
  3. Step 3: Cross multiply
    220,987.98x = 331,493.31 × 63,239.94
  4. Step 4: Simplify right side
    220,987.98x = 20,963,617,034.80
  5. Step 5: Solve for x
    x = 20,963,617,034.80/220,987.98
  6. Step 6: Final answer
    x = 94,863.16

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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.