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Finding the Fourth Proportional to 293,378.40, 440,133.66 and 158,439.48

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Solution

The fourth proportional to 293,378.40, 440,133.66 and 158,439.48 is: 237,694.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,378.40 : 440,133.66 = 158,439.48 : x
  2. Step 2: Convert to fraction form
    293,378.40/440,133.66 = 158,439.48/x
  3. Step 3: Cross multiply
    293,378.40x = 440,133.66 × 158,439.48
  4. Step 4: Simplify right side
    293,378.40x = 69,734,548,220.90
  5. Step 5: Solve for x
    x = 69,734,548,220.90/293,378.40
  6. Step 6: Final answer
    x = 237,694.90

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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.