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Finding the Fourth Proportional to 104,912.16, 157,414.76 and 54,980.39

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Solution

The fourth proportional to 104,912.16, 157,414.76 and 54,980.39 is: 82,494.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,912.16 : 157,414.76 = 54,980.39 : x
  2. Step 2: Convert to fraction form
    104,912.16/157,414.76 = 54,980.39/x
  3. Step 3: Cross multiply
    104,912.16x = 157,414.76 × 54,980.39
  4. Step 4: Simplify right side
    104,912.16x = 8,654,724,335.91
  5. Step 5: Solve for x
    x = 8,654,724,335.91/104,912.16
  6. Step 6: Final answer
    x = 82,494.96

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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.