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Finding the Fourth Proportional to 68,564.81, 94,628.19 and 38,351.81

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Solution

The fourth proportional to 68,564.81, 94,628.19 and 38,351.81 is: 52,930.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,564.81 : 94,628.19 = 38,351.81 : x
  2. Step 2: Convert to fraction form
    68,564.81/94,628.19 = 38,351.81/x
  3. Step 3: Cross multiply
    68,564.81x = 94,628.19 × 38,351.81
  4. Step 4: Simplify right side
    68,564.81x = 3,629,162,034.20
  5. Step 5: Solve for x
    x = 3,629,162,034.20/68,564.81
  6. Step 6: Final answer
    x = 52,930.39

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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.