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Finding the Fourth Proportional to 68,578.08, 94,646.50 and 38,365.08

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Solution

The fourth proportional to 68,578.08, 94,646.50 and 38,365.08 is: 52,948.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,578.08 : 94,646.50 = 38,365.08 : x
  2. Step 2: Convert to fraction form
    68,578.08/94,646.50 = 38,365.08/x
  3. Step 3: Cross multiply
    68,578.08x = 94,646.50 × 38,365.08
  4. Step 4: Simplify right side
    68,578.08x = 3,631,120,544.22
  5. Step 5: Solve for x
    x = 3,631,120,544.22/68,578.08
  6. Step 6: Final answer
    x = 52,948.71

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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.