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Finding the Fourth Proportional to 73,965.68, 102,079.78 and 43,760.72

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Solution

The fourth proportional to 73,965.68, 102,079.78 and 43,760.72 is: 60,394.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,965.68 : 102,079.78 = 43,760.72 : x
  2. Step 2: Convert to fraction form
    73,965.68/102,079.78 = 43,760.72/x
  3. Step 3: Cross multiply
    73,965.68x = 102,079.78 × 43,760.72
  4. Step 4: Simplify right side
    73,965.68x = 4,467,084,670.24
  5. Step 5: Solve for x
    x = 4,467,084,670.24/73,965.68
  6. Step 6: Final answer
    x = 60,394.02

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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.