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Finding the Fourth Proportional to 101,037.60, 139,431.60 and 58,620.96

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Solution

The fourth proportional to 101,037.60, 139,431.60 and 58,620.96 is: 80,896.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,037.60 : 139,431.60 = 58,620.96 : x
  2. Step 2: Convert to fraction form
    101,037.60/139,431.60 = 58,620.96/x
  3. Step 3: Cross multiply
    101,037.60x = 139,431.60 × 58,620.96
  4. Step 4: Simplify right side
    101,037.60x = 8,173,614,246.34
  5. Step 5: Solve for x
    x = 8,173,614,246.34/101,037.60
  6. Step 6: Final answer
    x = 80,896.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.