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Finding the Fourth Proportional to 134,432.72, 201,773.68 and 67,919.68

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Solution

The fourth proportional to 134,432.72, 201,773.68 and 67,919.68 is: 101,942.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,432.72 : 201,773.68 = 67,919.68 : x
  2. Step 2: Convert to fraction form
    134,432.72/201,773.68 = 67,919.68/x
  3. Step 3: Cross multiply
    134,432.72x = 201,773.68 × 67,919.68
  4. Step 4: Simplify right side
    134,432.72x = 13,704,403,778.02
  5. Step 5: Solve for x
    x = 13,704,403,778.02/134,432.72
  6. Step 6: Final answer
    x = 101,942.47

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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.