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Finding the Fourth Proportional to 68,374.64, 94,361.74 and 38,165.84

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Solution

The fourth proportional to 68,374.64, 94,361.74 and 38,165.84 is: 52,671.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,374.64 : 94,361.74 = 38,165.84 : x
  2. Step 2: Convert to fraction form
    68,374.64/94,361.74 = 38,165.84/x
  3. Step 3: Cross multiply
    68,374.64x = 94,361.74 × 38,165.84
  4. Step 4: Simplify right side
    68,374.64x = 3,601,395,070.96
  5. Step 5: Solve for x
    x = 3,601,395,070.96/68,374.64
  6. Step 6: Final answer
    x = 52,671.50

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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.