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Finding the Fourth Proportional to 75,898.40, 113,847.60 and 73,711.40

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Solution

The fourth proportional to 75,898.40, 113,847.60 and 73,711.40 is: 110,567.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,898.40 : 113,847.60 = 73,711.40 : x
  2. Step 2: Convert to fraction form
    75,898.40/113,847.60 = 73,711.40/x
  3. Step 3: Cross multiply
    75,898.40x = 113,847.60 × 73,711.40
  4. Step 4: Simplify right side
    75,898.40x = 8,391,865,982.64
  5. Step 5: Solve for x
    x = 8,391,865,982.64/75,898.40
  6. Step 6: Final answer
    x = 110,567.10

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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.