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Finding the Fourth Proportional to 233,160.99, 349,672.85 and 90,974.43

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Solution

The fourth proportional to 233,160.99, 349,672.85 and 90,974.43 is: 136,434.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    233,160.99 : 349,672.85 = 90,974.43 : x
  2. Step 2: Convert to fraction form
    233,160.99/349,672.85 = 90,974.43/x
  3. Step 3: Cross multiply
    233,160.99x = 349,672.85 × 90,974.43
  4. Step 4: Simplify right side
    233,160.99x = 31,811,287,760.35
  5. Step 5: Solve for x
    x = 31,811,287,760.35/233,160.99
  6. Step 6: Final answer
    x = 136,434.86

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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.