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Finding the Fourth Proportional to 237,509.12, 356,255.04 and 71,292.80

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Solution

The fourth proportional to 237,509.12, 356,255.04 and 71,292.80 is: 106,936.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,509.12 : 356,255.04 = 71,292.80 : x
  2. Step 2: Convert to fraction form
    237,509.12/356,255.04 = 71,292.80/x
  3. Step 3: Cross multiply
    237,509.12x = 356,255.04 × 71,292.80
  4. Step 4: Simplify right side
    237,509.12x = 25,398,419,315.71
  5. Step 5: Solve for x
    x = 25,398,419,315.71/237,509.12
  6. Step 6: Final answer
    x = 106,936.61

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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.