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Finding the Fourth Proportional to 71,574.60, 107,379.96 and 50,555.88

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Solution

The fourth proportional to 71,574.60, 107,379.96 and 50,555.88 is: 75,846.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,574.60 : 107,379.96 = 50,555.88 : x
  2. Step 2: Convert to fraction form
    71,574.60/107,379.96 = 50,555.88/x
  3. Step 3: Cross multiply
    71,574.60x = 107,379.96 × 50,555.88
  4. Step 4: Simplify right side
    71,574.60x = 5,428,688,372.16
  5. Step 5: Solve for x
    x = 5,428,688,372.16/71,574.60
  6. Step 6: Final answer
    x = 75,846.58

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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.