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Finding the Fourth Proportional to 157,993.08, 236,982.27 and 39,661.80

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Solution

The fourth proportional to 157,993.08, 236,982.27 and 39,661.80 is: 59,490.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,993.08 : 236,982.27 = 39,661.80 : x
  2. Step 2: Convert to fraction form
    157,993.08/236,982.27 = 39,661.80/x
  3. Step 3: Cross multiply
    157,993.08x = 236,982.27 × 39,661.80
  4. Step 4: Simplify right side
    157,993.08x = 9,399,143,396.29
  5. Step 5: Solve for x
    x = 9,399,143,396.29/157,993.08
  6. Step 6: Final answer
    x = 59,490.85

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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.