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Finding the Fourth Proportional to 72,763.92, 100,360.49 and 50,110.11

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Solution

The fourth proportional to 72,763.92, 100,360.49 and 50,110.11 is: 69,114.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,763.92 : 100,360.49 = 50,110.11 : x
  2. Step 2: Convert to fraction form
    72,763.92/100,360.49 = 50,110.11/x
  3. Step 3: Cross multiply
    72,763.92x = 100,360.49 × 50,110.11
  4. Step 4: Simplify right side
    72,763.92x = 5,029,074,943.00
  5. Step 5: Solve for x
    x = 5,029,074,943.00/72,763.92
  6. Step 6: Final answer
    x = 69,114.95

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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.