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Finding the Fourth Proportional to 70,468.44, 105,591.79 and 54,497.07

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Solution

The fourth proportional to 70,468.44, 105,591.79 and 54,497.07 is: 81,659.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,468.44 : 105,591.79 = 54,497.07 : x
  2. Step 2: Convert to fraction form
    70,468.44/105,591.79 = 54,497.07/x
  3. Step 3: Cross multiply
    70,468.44x = 105,591.79 × 54,497.07
  4. Step 4: Simplify right side
    70,468.44x = 5,754,443,171.06
  5. Step 5: Solve for x
    x = 5,754,443,171.06/70,468.44
  6. Step 6: Final answer
    x = 81,659.86

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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.