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Finding the Fourth Proportional to 68,578.08, 103,278 and 60,348.24

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Solution

The fourth proportional to 68,578.08, 103,278 and 60,348.24 is: 90,883.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,578.08 : 103,278 = 60,348.24 : x
  2. Step 2: Convert to fraction form
    68,578.08/103,278 = 60,348.24/x
  3. Step 3: Cross multiply
    68,578.08x = 103,278 × 60,348.24
  4. Step 4: Simplify right side
    68,578.08x = 6,232,645,530.72
  5. Step 5: Solve for x
    x = 6,232,645,530.72/68,578.08
  6. Step 6: Final answer
    x = 90,883.93

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.