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Finding the Fourth Proportional to 188,813.92, 260,562.96 and 103,936.42

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Solution

The fourth proportional to 188,813.92, 260,562.96 and 103,936.42 is: 143,432.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,813.92 : 260,562.96 = 103,936.42 : x
  2. Step 2: Convert to fraction form
    188,813.92/260,562.96 = 103,936.42/x
  3. Step 3: Cross multiply
    188,813.92x = 260,562.96 × 103,936.42
  4. Step 4: Simplify right side
    188,813.92x = 27,081,981,247.00
  5. Step 5: Solve for x
    x = 27,081,981,247.00/188,813.92
  6. Step 6: Final answer
    x = 143,432.12

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1.5x scale

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.