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Finding the Fourth Proportional to 68,571.60, 94,719.16 and 52,628.64

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Solution

The fourth proportional to 68,571.60, 94,719.16 and 52,628.64 is: 72,696.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,571.60 : 94,719.16 = 52,628.64 : x
  2. Step 2: Convert to fraction form
    68,571.60/94,719.16 = 52,628.64/x
  3. Step 3: Cross multiply
    68,571.60x = 94,719.16 × 52,628.64
  4. Step 4: Simplify right side
    68,571.60x = 4,984,940,572.74
  5. Step 5: Solve for x
    x = 4,984,940,572.74/68,571.60
  6. Step 6: Final answer
    x = 72,696.87

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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.