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Finding the Fourth Proportional to 188,753.70, 260,464.20 and 111,217.02

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Solution

The fourth proportional to 188,753.70, 260,464.20 and 111,217.02 is: 153,470.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,753.70 : 260,464.20 = 111,217.02 : x
  2. Step 2: Convert to fraction form
    188,753.70/260,464.20 = 111,217.02/x
  3. Step 3: Cross multiply
    188,753.70x = 260,464.20 × 111,217.02
  4. Step 4: Simplify right side
    188,753.70x = 28,968,052,140.68
  5. Step 5: Solve for x
    x = 28,968,052,140.68/188,753.70
  6. Step 6: Final answer
    x = 153,470.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.