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Finding the Fourth Proportional to 71,816.76, 107,740.57 and 35,812.83

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Solution

The fourth proportional to 71,816.76, 107,740.57 and 35,812.83 is: 53,726.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,816.76 : 107,740.57 = 35,812.83 : x
  2. Step 2: Convert to fraction form
    71,816.76/107,740.57 = 35,812.83/x
  3. Step 3: Cross multiply
    71,816.76x = 107,740.57 × 35,812.83
  4. Step 4: Simplify right side
    71,816.76x = 3,858,494,717.51
  5. Step 5: Solve for x
    x = 3,858,494,717.51/71,816.76
  6. Step 6: Final answer
    x = 53,726.94

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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.