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Finding the Fourth Proportional to 134,439.67, 201,784.12 and 67,926.54

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Solution

The fourth proportional to 134,439.67, 201,784.12 and 67,926.54 is: 101,952.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,439.67 : 201,784.12 = 67,926.54 : x
  2. Step 2: Convert to fraction form
    134,439.67/201,784.12 = 67,926.54/x
  3. Step 3: Cross multiply
    134,439.67x = 201,784.12 × 67,926.54
  4. Step 4: Simplify right side
    134,439.67x = 13,706,497,558.06
  5. Step 5: Solve for x
    x = 13,706,497,558.06/134,439.67
  6. Step 6: Final answer
    x = 101,952.78

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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.