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Finding the Fourth Proportional to 69,887.94, 104,849.19 and 23,145.54

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Solution

The fourth proportional to 69,887.94, 104,849.19 and 23,145.54 is: 34,724.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,887.94 : 104,849.19 = 23,145.54 : x
  2. Step 2: Convert to fraction form
    69,887.94/104,849.19 = 23,145.54/x
  3. Step 3: Cross multiply
    69,887.94x = 104,849.19 × 23,145.54
  4. Step 4: Simplify right side
    69,887.94x = 2,426,791,121.11
  5. Step 5: Solve for x
    x = 2,426,791,121.11/69,887.94
  6. Step 6: Final answer
    x = 34,724.03

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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.