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Finding the Fourth Proportional to 127,336.70, 191,043.45 and 68,200.70

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Solution

The fourth proportional to 127,336.70, 191,043.45 and 68,200.70 is: 102,321.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,336.70 : 191,043.45 = 68,200.70 : x
  2. Step 2: Convert to fraction form
    127,336.70/191,043.45 = 68,200.70/x
  3. Step 3: Cross multiply
    127,336.70x = 191,043.45 × 68,200.70
  4. Step 4: Simplify right side
    127,336.70x = 13,029,297,020.42
  5. Step 5: Solve for x
    x = 13,029,297,020.42/127,336.70
  6. Step 6: Final answer
    x = 102,321.62

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1.5x scale

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.