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Finding the Fourth Proportional to 95,018.58, 131,139.48 and 54,724.50

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Solution

The fourth proportional to 95,018.58, 131,139.48 and 54,724.50 is: 75,527.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,018.58 : 131,139.48 = 54,724.50 : x
  2. Step 2: Convert to fraction form
    95,018.58/131,139.48 = 54,724.50/x
  3. Step 3: Cross multiply
    95,018.58x = 131,139.48 × 54,724.50
  4. Step 4: Simplify right side
    95,018.58x = 7,176,542,473.26
  5. Step 5: Solve for x
    x = 7,176,542,473.26/95,018.58
  6. Step 6: Final answer
    x = 75,527.78

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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.