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Finding the Fourth Proportional to 103,471.10, 155,243.10 and 50,845.40

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Solution

The fourth proportional to 103,471.10, 155,243.10 and 50,845.40 is: 76,286.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,471.10 : 155,243.10 = 50,845.40 : x
  2. Step 2: Convert to fraction form
    103,471.10/155,243.10 = 50,845.40/x
  3. Step 3: Cross multiply
    103,471.10x = 155,243.10 × 50,845.40
  4. Step 4: Simplify right side
    103,471.10x = 7,893,397,516.74
  5. Step 5: Solve for x
    x = 7,893,397,516.74/103,471.10
  6. Step 6: Final answer
    x = 76,286.01

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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.