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Finding the Fourth Proportional to 239,912.92, 359,308.86 and 189,655.48

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Solution

The fourth proportional to 239,912.92, 359,308.86 and 189,655.48 is: 284,040.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,912.92 : 359,308.86 = 189,655.48 : x
  2. Step 2: Convert to fraction form
    239,912.92/359,308.86 = 189,655.48/x
  3. Step 3: Cross multiply
    239,912.92x = 359,308.86 × 189,655.48
  4. Step 4: Simplify right side
    239,912.92x = 68,144,894,311.55
  5. Step 5: Solve for x
    x = 68,144,894,311.55/239,912.92
  6. Step 6: Final answer
    x = 284,040.12

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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.