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Finding the Fourth Proportional to 188,234.53, 282,407.08 and 75,856.90

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Solution

The fourth proportional to 188,234.53, 282,407.08 and 75,856.90 is: 113,807.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,234.53 : 282,407.08 = 75,856.90 : x
  2. Step 2: Convert to fraction form
    188,234.53/282,407.08 = 75,856.90/x
  3. Step 3: Cross multiply
    188,234.53x = 282,407.08 × 75,856.90
  4. Step 4: Simplify right side
    188,234.53x = 21,422,526,143.23
  5. Step 5: Solve for x
    x = 21,422,526,143.23/188,234.53
  6. Step 6: Final answer
    x = 113,807.63

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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.