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Finding the Fourth Proportional to 395,367.05, 593,073.56 and 111,079.76

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Solution

The fourth proportional to 395,367.05, 593,073.56 and 111,079.76 is: 166,626.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,367.05 : 593,073.56 = 111,079.76 : x
  2. Step 2: Convert to fraction form
    395,367.05/593,073.56 = 111,079.76/x
  3. Step 3: Cross multiply
    395,367.05x = 593,073.56 × 111,079.76
  4. Step 4: Simplify right side
    395,367.05x = 65,878,465,186.38
  5. Step 5: Solve for x
    x = 65,878,465,186.38/395,367.05
  6. Step 6: Final answer
    x = 166,626.09

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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.