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Finding the Fourth Proportional to 55,574.78, 83,364.82 and 18,134.78

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Solution

The fourth proportional to 55,574.78, 83,364.82 and 18,134.78 is: 27,203.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,574.78 : 83,364.82 = 18,134.78 : x
  2. Step 2: Convert to fraction form
    55,574.78/83,364.82 = 18,134.78/x
  3. Step 3: Cross multiply
    55,574.78x = 83,364.82 × 18,134.78
  4. Step 4: Simplify right side
    55,574.78x = 1,511,802,208.28
  5. Step 5: Solve for x
    x = 1,511,802,208.28/55,574.78
  6. Step 6: Final answer
    x = 27,203.03

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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.