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Finding the Fourth Proportional to 101,260.60, 139,715.76 and 58,793.92

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Solution

The fourth proportional to 101,260.60, 139,715.76 and 58,793.92 is: 81,121.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,260.60 : 139,715.76 = 58,793.92 : x
  2. Step 2: Convert to fraction form
    101,260.60/139,715.76 = 58,793.92/x
  3. Step 3: Cross multiply
    101,260.60x = 139,715.76 × 58,793.92
  4. Step 4: Simplify right side
    101,260.60x = 8,214,437,216.18
  5. Step 5: Solve for x
    x = 8,214,437,216.18/101,260.60
  6. Step 6: Final answer
    x = 81,121.75

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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.