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Finding the Fourth Proportional to 239,717.90, 359,016.20 and 189,460.70

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Solution

The fourth proportional to 239,717.90, 359,016.20 and 189,460.70 is: 283,747.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,717.90 : 359,016.20 = 189,460.70 : x
  2. Step 2: Convert to fraction form
    239,717.90/359,016.20 = 189,460.70/x
  3. Step 3: Cross multiply
    239,717.90x = 359,016.20 × 189,460.70
  4. Step 4: Simplify right side
    239,717.90x = 68,019,460,563.34
  5. Step 5: Solve for x
    x = 68,019,460,563.34/239,717.90
  6. Step 6: Final answer
    x = 283,747.94

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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.