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Finding the Fourth Proportional to 134,611.96, 185,765.77 and 74,184.81

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Solution

The fourth proportional to 134,611.96, 185,765.77 and 74,184.81 is: 102,375.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,611.96 : 185,765.77 = 74,184.81 : x
  2. Step 2: Convert to fraction form
    134,611.96/185,765.77 = 74,184.81/x
  3. Step 3: Cross multiply
    134,611.96x = 185,765.77 × 74,184.81
  4. Step 4: Simplify right side
    134,611.96x = 13,780,997,773.93
  5. Step 5: Solve for x
    x = 13,780,997,773.93/134,611.96
  6. Step 6: Final answer
    x = 102,375.73

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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.