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Finding the Fourth Proportional to 237,540.12, 356,301.54 and 71,323.80

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Solution

The fourth proportional to 237,540.12, 356,301.54 and 71,323.80 is: 106,983.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,540.12 : 356,301.54 = 71,323.80 : x
  2. Step 2: Convert to fraction form
    237,540.12/356,301.54 = 71,323.80/x
  3. Step 3: Cross multiply
    237,540.12x = 356,301.54 × 71,323.80
  4. Step 4: Simplify right side
    237,540.12x = 25,412,779,778.65
  5. Step 5: Solve for x
    x = 25,412,779,778.65/237,540.12
  6. Step 6: Final answer
    x = 106,983.11

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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.