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Finding the Fourth Proportional to 266,409.42, 399,614.13 and 108,650.22

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Solution

The fourth proportional to 266,409.42, 399,614.13 and 108,650.22 is: 162,975.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,409.42 : 399,614.13 = 108,650.22 : x
  2. Step 2: Convert to fraction form
    266,409.42/399,614.13 = 108,650.22/x
  3. Step 3: Cross multiply
    266,409.42x = 399,614.13 × 108,650.22
  4. Step 4: Simplify right side
    266,409.42x = 43,418,163,139.61
  5. Step 5: Solve for x
    x = 43,418,163,139.61/266,409.42
  6. Step 6: Final answer
    x = 162,975.33

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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.