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Finding the Fourth Proportional to 225,110.92, 337,666.90 and 91,991.16

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Solution

The fourth proportional to 225,110.92, 337,666.90 and 91,991.16 is: 137,986.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,110.92 : 337,666.90 = 91,991.16 : x
  2. Step 2: Convert to fraction form
    225,110.92/337,666.90 = 91,991.16/x
  3. Step 3: Cross multiply
    225,110.92x = 337,666.90 × 91,991.16
  4. Step 4: Simplify right side
    225,110.92x = 31,062,369,824.60
  5. Step 5: Solve for x
    x = 31,062,369,824.60/225,110.92
  6. Step 6: Final answer
    x = 137,986.95

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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.