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Finding the Fourth Proportional to 75,325.60, 113,033.20 and 28,583.20

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Solution

The fourth proportional to 75,325.60, 113,033.20 and 28,583.20 is: 42,891.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,325.60 : 113,033.20 = 28,583.20 : x
  2. Step 2: Convert to fraction form
    75,325.60/113,033.20 = 28,583.20/x
  3. Step 3: Cross multiply
    75,325.60x = 113,033.20 × 28,583.20
  4. Step 4: Simplify right side
    75,325.60x = 3,230,850,562.24
  5. Step 5: Solve for x
    x = 3,230,850,562.24/75,325.60
  6. Step 6: Final answer
    x = 42,891.80

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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.