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Finding the Fourth Proportional to 193,247.60, 289,871.40 and 82,655.60

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Solution

The fourth proportional to 193,247.60, 289,871.40 and 82,655.60 is: 123,983.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,247.60 : 289,871.40 = 82,655.60 : x
  2. Step 2: Convert to fraction form
    193,247.60/289,871.40 = 82,655.60/x
  3. Step 3: Cross multiply
    193,247.60x = 289,871.40 × 82,655.60
  4. Step 4: Simplify right side
    193,247.60x = 23,959,494,489.84
  5. Step 5: Solve for x
    x = 23,959,494,489.84/193,247.60
  6. Step 6: Final answer
    x = 123,983.40

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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.