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Finding the Fourth Proportional to 243,179.16, 364,754.97 and 65,672.79

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Solution

The fourth proportional to 243,179.16, 364,754.97 and 65,672.79 is: 98,505.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,179.16 : 364,754.97 = 65,672.79 : x
  2. Step 2: Convert to fraction form
    243,179.16/364,754.97 = 65,672.79/x
  3. Step 3: Cross multiply
    243,179.16x = 364,754.97 × 65,672.79
  4. Step 4: Simplify right side
    243,179.16x = 23,954,476,546.27
  5. Step 5: Solve for x
    x = 23,954,476,546.27/243,179.16
  6. Step 6: Final answer
    x = 98,505.47

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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.