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Finding the Fourth Proportional to 243,178.66, 364,754.22 and 65,672.29

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Solution

The fourth proportional to 243,178.66, 364,754.22 and 65,672.29 is: 98,504.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,178.66 : 364,754.22 = 65,672.29 : x
  2. Step 2: Convert to fraction form
    243,178.66/364,754.22 = 65,672.29/x
  3. Step 3: Cross multiply
    243,178.66x = 364,754.22 × 65,672.29
  4. Step 4: Simplify right side
    243,178.66x = 23,954,244,914.56
  5. Step 5: Solve for x
    x = 23,954,244,914.56/243,178.66
  6. Step 6: Final answer
    x = 98,504.72

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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.