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Finding the Fourth Proportional to 106,818.48, 160,141.32 and 65,251.44

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Solution

The fourth proportional to 106,818.48, 160,141.32 and 65,251.44 is: 97,824.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,818.48 : 160,141.32 = 65,251.44 : x
  2. Step 2: Convert to fraction form
    106,818.48/160,141.32 = 65,251.44/x
  3. Step 3: Cross multiply
    106,818.48x = 160,141.32 × 65,251.44
  4. Step 4: Simplify right side
    106,818.48x = 10,449,451,733.50
  5. Step 5: Solve for x
    x = 10,449,451,733.50/106,818.48
  6. Step 6: Final answer
    x = 97,824.38

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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.