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Finding the Fourth Proportional to 223,634, 308,614.92 and 123,029.84

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Solution

The fourth proportional to 223,634, 308,614.92 and 123,029.84 is: 169,781.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,634 : 308,614.92 = 123,029.84 : x
  2. Step 2: Convert to fraction form
    223,634/308,614.92 = 123,029.84/x
  3. Step 3: Cross multiply
    223,634x = 308,614.92 × 123,029.84
  4. Step 4: Simplify right side
    223,634x = 37,968,844,229.21
  5. Step 5: Solve for x
    x = 37,968,844,229.21/223,634
  6. Step 6: Final answer
    x = 169,781.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.