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Finding the Fourth Proportional to 68,564.43, 94,627.68 and 38,351.43

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Solution

The fourth proportional to 68,564.43, 94,627.68 and 38,351.43 is: 52,929.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,564.43 : 94,627.68 = 38,351.43 : x
  2. Step 2: Convert to fraction form
    68,564.43/94,627.68 = 38,351.43/x
  3. Step 3: Cross multiply
    68,564.43x = 94,627.68 × 38,351.43
  4. Step 4: Simplify right side
    68,564.43x = 3,629,106,701.76
  5. Step 5: Solve for x
    x = 3,629,106,701.76/68,564.43
  6. Step 6: Final answer
    x = 52,929.87

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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.