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Finding the Fourth Proportional to 75,682, 113,348.04 and 73,057.60

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Solution

The fourth proportional to 75,682, 113,348.04 and 73,057.60 is: 109,417.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,682 : 113,348.04 = 73,057.60 : x
  2. Step 2: Convert to fraction form
    75,682/113,348.04 = 73,057.60/x
  3. Step 3: Cross multiply
    75,682x = 113,348.04 × 73,057.60
  4. Step 4: Simplify right side
    75,682x = 8,280,935,767.10
  5. Step 5: Solve for x
    x = 8,280,935,767.10/75,682
  6. Step 6: Final answer
    x = 109,417.51

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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.