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Finding the Fourth Proportional to 68,778.85, 94,954.14 and 52,616.38

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Solution

The fourth proportional to 68,778.85, 94,954.14 and 52,616.38 is: 72,640.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,778.85 : 94,954.14 = 52,616.38 : x
  2. Step 2: Convert to fraction form
    68,778.85/94,954.14 = 52,616.38/x
  3. Step 3: Cross multiply
    68,778.85x = 94,954.14 × 52,616.38
  4. Step 4: Simplify right side
    68,778.85x = 4,996,143,112.81
  5. Step 5: Solve for x
    x = 4,996,143,112.81/68,778.85
  6. Step 6: Final answer
    x = 72,640.69

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1.5x scale

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.