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Finding the Fourth Proportional to 134,028.78, 184,934 and 85,656

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Solution

The fourth proportional to 134,028.78, 184,934 and 85,656 is: 118,188.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,028.78 : 184,934 = 85,656 : x
  2. Step 2: Convert to fraction form
    134,028.78/184,934 = 85,656/x
  3. Step 3: Cross multiply
    134,028.78x = 184,934 × 85,656
  4. Step 4: Simplify right side
    134,028.78x = 15,840,706,704
  5. Step 5: Solve for x
    x = 15,840,706,704/134,028.78
  6. Step 6: Final answer
    x = 118,188.84

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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.