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Finding the Fourth Proportional to 236,817, 326,807.46 and 136,215

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Solution

The fourth proportional to 236,817, 326,807.46 and 136,215 is: 187,976.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,817 : 326,807.46 = 136,215 : x
  2. Step 2: Convert to fraction form
    236,817/326,807.46 = 136,215/x
  3. Step 3: Cross multiply
    236,817x = 326,807.46 × 136,215
  4. Step 4: Simplify right side
    236,817x = 44,516,078,163.90
  5. Step 5: Solve for x
    x = 44,516,078,163.90/236,817
  6. Step 6: Final answer
    x = 187,976.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.