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Finding the Fourth Proportional to 134,611.82, 185,765.54 and 74,184.62

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Solution

The fourth proportional to 134,611.82, 185,765.54 and 74,184.62 is: 102,375.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,611.82 : 185,765.54 = 74,184.62 : x
  2. Step 2: Convert to fraction form
    134,611.82/185,765.54 = 74,184.62/x
  3. Step 3: Cross multiply
    134,611.82x = 185,765.54 × 74,184.62
  4. Step 4: Simplify right side
    134,611.82x = 13,780,946,087.49
  5. Step 5: Solve for x
    x = 13,780,946,087.49/134,611.82
  6. Step 6: Final answer
    x = 102,375.46

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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.