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Finding the Fourth Proportional to 68,754.64, 94,880.64 and 38,544.88

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Solution

The fourth proportional to 68,754.64, 94,880.64 and 38,544.88 is: 53,191.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,754.64 : 94,880.64 = 38,544.88 : x
  2. Step 2: Convert to fraction form
    68,754.64/94,880.64 = 38,544.88/x
  3. Step 3: Cross multiply
    68,754.64x = 94,880.64 × 38,544.88
  4. Step 4: Simplify right side
    68,754.64x = 3,657,162,883.12
  5. Step 5: Solve for x
    x = 3,657,162,883.12/68,754.64
  6. Step 6: Final answer
    x = 53,191.51

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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.