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Finding the Fourth Proportional to 223,497.38, 308,426.38 and 122,895.38

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Solution

The fourth proportional to 223,497.38, 308,426.38 and 122,895.38 is: 169,595.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,497.38 : 308,426.38 = 122,895.38 : x
  2. Step 2: Convert to fraction form
    223,497.38/308,426.38 = 122,895.38/x
  3. Step 3: Cross multiply
    223,497.38x = 308,426.38 × 122,895.38
  4. Step 4: Simplify right side
    223,497.38x = 37,904,177,172.12
  5. Step 5: Solve for x
    x = 37,904,177,172.12/223,497.38
  6. Step 6: Final answer
    x = 169,595.62

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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.