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Finding the Fourth Proportional to 223,976.54, 309,087.63 and 123,374.54

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Solution

The fourth proportional to 223,976.54, 309,087.63 and 123,374.54 is: 170,256.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,976.54 : 309,087.63 = 123,374.54 : x
  2. Step 2: Convert to fraction form
    223,976.54/309,087.63 = 123,374.54/x
  3. Step 3: Cross multiply
    223,976.54x = 309,087.63 × 123,374.54
  4. Step 4: Simplify right side
    223,976.54x = 38,133,544,943.66
  5. Step 5: Solve for x
    x = 38,133,544,943.66/223,976.54
  6. Step 6: Final answer
    x = 170,256.87

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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.