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Finding the Fourth Proportional to 341,530.17, 512,319.86 and 131,168.11

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Solution

The fourth proportional to 341,530.17, 512,319.86 and 131,168.11 is: 196,761.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,530.17 : 512,319.86 = 131,168.11 : x
  2. Step 2: Convert to fraction form
    341,530.17/512,319.86 = 131,168.11/x
  3. Step 3: Cross multiply
    341,530.17x = 512,319.86 × 131,168.11
  4. Step 4: Simplify right side
    341,530.17x = 67,200,027,636.41
  5. Step 5: Solve for x
    x = 67,200,027,636.41/341,530.17
  6. Step 6: Final answer
    x = 196,761.61

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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.