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Finding the Fourth Proportional to 60,476.87, 90,684.05 and 27,168.45

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Solution

The fourth proportional to 60,476.87, 90,684.05 and 27,168.45 is: 40,738.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,476.87 : 90,684.05 = 27,168.45 : x
  2. Step 2: Convert to fraction form
    60,476.87/90,684.05 = 27,168.45/x
  3. Step 3: Cross multiply
    60,476.87x = 90,684.05 × 27,168.45
  4. Step 4: Simplify right side
    60,476.87x = 2,463,744,942.38
  5. Step 5: Solve for x
    x = 2,463,744,942.38/60,476.87
  6. Step 6: Final answer
    x = 40,738.64

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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.