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Finding the Fourth Proportional to 62,611.68, 86,353.79 and 55,041.96

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Solution

The fourth proportional to 62,611.68, 86,353.79 and 55,041.96 is: 75,913.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,611.68 : 86,353.79 = 55,041.96 : x
  2. Step 2: Convert to fraction form
    62,611.68/86,353.79 = 55,041.96/x
  3. Step 3: Cross multiply
    62,611.68x = 86,353.79 × 55,041.96
  4. Step 4: Simplify right side
    62,611.68x = 4,753,081,579.82
  5. Step 5: Solve for x
    x = 4,753,081,579.82/62,611.68
  6. Step 6: Final answer
    x = 75,913.66

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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.