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Finding the Fourth Proportional to 188,737.50, 283,149.99 and 64,078.50

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Solution

The fourth proportional to 188,737.50, 283,149.99 and 64,078.50 is: 96,132.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,737.50 : 283,149.99 = 64,078.50 : x
  2. Step 2: Convert to fraction form
    188,737.50/283,149.99 = 64,078.50/x
  3. Step 3: Cross multiply
    188,737.50x = 283,149.99 × 64,078.50
  4. Step 4: Simplify right side
    188,737.50x = 18,143,826,634.22
  5. Step 5: Solve for x
    x = 18,143,826,634.22/188,737.50
  6. Step 6: Final answer
    x = 96,132.60

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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.