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Finding the Fourth Proportional to 262,422.72, 393,640.08 and 93,954.48

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Solution

The fourth proportional to 262,422.72, 393,640.08 and 93,954.48 is: 140,933.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,422.72 : 393,640.08 = 93,954.48 : x
  2. Step 2: Convert to fraction form
    262,422.72/393,640.08 = 93,954.48/x
  3. Step 3: Cross multiply
    262,422.72x = 393,640.08 × 93,954.48
  4. Step 4: Simplify right side
    262,422.72x = 36,984,249,023.56
  5. Step 5: Solve for x
    x = 36,984,249,023.56/262,422.72
  6. Step 6: Final answer
    x = 140,933.87

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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.