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Finding the Fourth Proportional to 68,984.87, 95,203.49 and 38,361.40

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Solution

The fourth proportional to 68,984.87, 95,203.49 and 38,361.40 is: 52,941.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,984.87 : 95,203.49 = 38,361.40 : x
  2. Step 2: Convert to fraction form
    68,984.87/95,203.49 = 38,361.40/x
  3. Step 3: Cross multiply
    68,984.87x = 95,203.49 × 38,361.40
  4. Step 4: Simplify right side
    68,984.87x = 3,652,138,731.47
  5. Step 5: Solve for x
    x = 3,652,138,731.47/68,984.87
  6. Step 6: Final answer
    x = 52,941.16

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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.