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Finding the Fourth Proportional to 220,644.27, 330,978.71 and 62,860.43

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Solution

The fourth proportional to 220,644.27, 330,978.71 and 62,860.43 is: 94,294.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,644.27 : 330,978.71 = 62,860.43 : x
  2. Step 2: Convert to fraction form
    220,644.27/330,978.71 = 62,860.43/x
  3. Step 3: Cross multiply
    220,644.27x = 330,978.71 × 62,860.43
  4. Step 4: Simplify right side
    220,644.27x = 20,805,462,062.25
  5. Step 5: Solve for x
    x = 20,805,462,062.25/220,644.27
  6. Step 6: Final answer
    x = 94,294.14

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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.