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Finding the Fourth Proportional to 322,231.65, 482,611.23 and 153,869.91

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Solution

The fourth proportional to 322,231.65, 482,611.23 and 153,869.91 is: 230,453.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,231.65 : 482,611.23 = 153,869.91 : x
  2. Step 2: Convert to fraction form
    322,231.65/482,611.23 = 153,869.91/x
  3. Step 3: Cross multiply
    322,231.65x = 482,611.23 × 153,869.91
  4. Step 4: Simplify right side
    322,231.65x = 74,259,346,525.09
  5. Step 5: Solve for x
    x = 74,259,346,525.09/322,231.65
  6. Step 6: Final answer
    x = 230,453.30

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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.