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Finding the Fourth Proportional to 55,253.81, 76,169.66 and 43,927.88

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Solution

The fourth proportional to 55,253.81, 76,169.66 and 43,927.88 is: 60,556.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,253.81 : 76,169.66 = 43,927.88 : x
  2. Step 2: Convert to fraction form
    55,253.81/76,169.66 = 43,927.88/x
  3. Step 3: Cross multiply
    55,253.81x = 76,169.66 × 43,927.88
  4. Step 4: Simplify right side
    55,253.81x = 3,345,971,083.63
  5. Step 5: Solve for x
    x = 3,345,971,083.63/55,253.81
  6. Step 6: Final answer
    x = 60,556.38

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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.