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Finding the Fourth Proportional to 368,591.40, 552,912.21 and 125,333.42

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Solution

The fourth proportional to 368,591.40, 552,912.21 and 125,333.42 is: 188,008.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,591.40 : 552,912.21 = 125,333.42 : x
  2. Step 2: Convert to fraction form
    368,591.40/552,912.21 = 125,333.42/x
  3. Step 3: Cross multiply
    368,591.40x = 552,912.21 × 125,333.42
  4. Step 4: Simplify right side
    368,591.40x = 69,298,375,474.50
  5. Step 5: Solve for x
    x = 69,298,375,474.50/368,591.40
  6. Step 6: Final answer
    x = 188,008.66

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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.