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Finding the Fourth Proportional to 71,372.70, 107,059.05 and 50,636.70

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Solution

The fourth proportional to 71,372.70, 107,059.05 and 50,636.70 is: 75,955.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,372.70 : 107,059.05 = 50,636.70 : x
  2. Step 2: Convert to fraction form
    71,372.70/107,059.05 = 50,636.70/x
  3. Step 3: Cross multiply
    71,372.70x = 107,059.05 × 50,636.70
  4. Step 4: Simplify right side
    71,372.70x = 5,421,116,997.14
  5. Step 5: Solve for x
    x = 5,421,116,997.14/71,372.70
  6. Step 6: Final answer
    x = 75,955.05

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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.