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Finding the Fourth Proportional to 68,114.46, 93,989.70 and 37,892.64

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Solution

The fourth proportional to 68,114.46, 93,989.70 and 37,892.64 is: 52,287.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,114.46 : 93,989.70 = 37,892.64 : x
  2. Step 2: Convert to fraction form
    68,114.46/93,989.70 = 37,892.64/x
  3. Step 3: Cross multiply
    68,114.46x = 93,989.70 × 37,892.64
  4. Step 4: Simplify right side
    68,114.46x = 3,561,517,865.81
  5. Step 5: Solve for x
    x = 3,561,517,865.81/68,114.46
  6. Step 6: Final answer
    x = 52,287.25

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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.