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Finding the Fourth Proportional to 188,753.60, 283,131.84 and 68,896.46

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Solution

The fourth proportional to 188,753.60, 283,131.84 and 68,896.46 is: 103,345.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,753.60 : 283,131.84 = 68,896.46 : x
  2. Step 2: Convert to fraction form
    188,753.60/283,131.84 = 68,896.46/x
  3. Step 3: Cross multiply
    188,753.60x = 283,131.84 × 68,896.46
  4. Step 4: Simplify right side
    188,753.60x = 19,506,781,489.29
  5. Step 5: Solve for x
    x = 19,506,781,489.29/188,753.60
  6. Step 6: Final answer
    x = 103,345.22

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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.