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Finding the Fourth Proportional to 90,593.33, 135,862.64 and 37,991.12

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Solution

The fourth proportional to 90,593.33, 135,862.64 and 37,991.12 is: 56,975.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,593.33 : 135,862.64 = 37,991.12 : x
  2. Step 2: Convert to fraction form
    90,593.33/135,862.64 = 37,991.12/x
  3. Step 3: Cross multiply
    90,593.33x = 135,862.64 × 37,991.12
  4. Step 4: Simplify right side
    90,593.33x = 5,161,572,990.49
  5. Step 5: Solve for x
    x = 5,161,572,990.49/90,593.33
  6. Step 6: Final answer
    x = 56,975.20

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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.