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Finding the Fourth Proportional to 75,373.68, 113,086.32 and 47,259.79

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Solution

The fourth proportional to 75,373.68, 113,086.32 and 47,259.79 is: 70,905.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,373.68 : 113,086.32 = 47,259.79 : x
  2. Step 2: Convert to fraction form
    75,373.68/113,086.32 = 47,259.79/x
  3. Step 3: Cross multiply
    75,373.68x = 113,086.32 × 47,259.79
  4. Step 4: Simplify right side
    75,373.68x = 5,344,435,735.07
  5. Step 5: Solve for x
    x = 5,344,435,735.07/75,373.68
  6. Step 6: Final answer
    x = 70,905.87

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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.