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Finding the Fourth Proportional to 71,720.58, 107,562.60 and 50,856.60

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Solution

The fourth proportional to 71,720.58, 107,562.60 and 50,856.60 is: 76,271.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,720.58 : 107,562.60 = 50,856.60 : x
  2. Step 2: Convert to fraction form
    71,720.58/107,562.60 = 50,856.60/x
  3. Step 3: Cross multiply
    71,720.58x = 107,562.60 × 50,856.60
  4. Step 4: Simplify right side
    71,720.58x = 5,470,268,123.16
  5. Step 5: Solve for x
    x = 5,470,268,123.16/71,720.58
  6. Step 6: Final answer
    x = 76,271.94

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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.