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Finding the Fourth Proportional to 55,867.56, 77,098.56 and 30,375.39

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Solution

The fourth proportional to 55,867.56, 77,098.56 and 30,375.39 is: 41,918.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,867.56 : 77,098.56 = 30,375.39 : x
  2. Step 2: Convert to fraction form
    55,867.56/77,098.56 = 30,375.39/x
  3. Step 3: Cross multiply
    55,867.56x = 77,098.56 × 30,375.39
  4. Step 4: Simplify right side
    55,867.56x = 2,341,898,828.44
  5. Step 5: Solve for x
    x = 2,341,898,828.44/55,867.56
  6. Step 6: Final answer
    x = 41,918.76

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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.