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Finding the Fourth Proportional to 134,759.60, 201,969.30 and 68,218.10

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Solution

The fourth proportional to 134,759.60, 201,969.30 and 68,218.10 is: 102,241.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,759.60 : 201,969.30 = 68,218.10 : x
  2. Step 2: Convert to fraction form
    134,759.60/201,969.30 = 68,218.10/x
  3. Step 3: Cross multiply
    134,759.60x = 201,969.30 × 68,218.10
  4. Step 4: Simplify right side
    134,759.60x = 13,777,961,904.33
  5. Step 5: Solve for x
    x = 13,777,961,904.33/134,759.60
  6. Step 6: Final answer
    x = 102,241.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.