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Finding the Fourth Proportional to 225,085.68, 337,674.08 and 91,976.66

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Solution

The fourth proportional to 225,085.68, 337,674.08 and 91,976.66 is: 137,983.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,085.68 : 337,674.08 = 91,976.66 : x
  2. Step 2: Convert to fraction form
    225,085.68/337,674.08 = 91,976.66/x
  3. Step 3: Cross multiply
    225,085.68x = 337,674.08 × 91,976.66
  4. Step 4: Simplify right side
    225,085.68x = 31,058,131,898.72
  5. Step 5: Solve for x
    x = 31,058,131,898.72/225,085.68
  6. Step 6: Final answer
    x = 137,983.60

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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.