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Finding the Fourth Proportional to 72,661.46, 108,933.37 and 22,715.84

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Solution

The fourth proportional to 72,661.46, 108,933.37 and 22,715.84 is: 34,055.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,661.46 : 108,933.37 = 22,715.84 : x
  2. Step 2: Convert to fraction form
    72,661.46/108,933.37 = 22,715.84/x
  3. Step 3: Cross multiply
    72,661.46x = 108,933.37 × 22,715.84
  4. Step 4: Simplify right side
    72,661.46x = 2,474,513,251.07
  5. Step 5: Solve for x
    x = 2,474,513,251.07/72,661.46
  6. Step 6: Final answer
    x = 34,055.38

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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.