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Finding the Fourth Proportional to 187,969.68, 281,997.72 and 82,796.76

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Solution

The fourth proportional to 187,969.68, 281,997.72 and 82,796.76 is: 124,214.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,969.68 : 281,997.72 = 82,796.76 : x
  2. Step 2: Convert to fraction form
    187,969.68/281,997.72 = 82,796.76/x
  3. Step 3: Cross multiply
    187,969.68x = 281,997.72 × 82,796.76
  4. Step 4: Simplify right side
    187,969.68x = 23,348,497,543.39
  5. Step 5: Solve for x
    x = 23,348,497,543.39/187,969.68
  6. Step 6: Final answer
    x = 124,214.17

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1.5x scale

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.