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Finding the Fourth Proportional to 118,055.52, 162,921.01 and 67,076.89

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Solution

The fourth proportional to 118,055.52, 162,921.01 and 67,076.89 is: 92,568.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,055.52 : 162,921.01 = 67,076.89 : x
  2. Step 2: Convert to fraction form
    118,055.52/162,921.01 = 67,076.89/x
  3. Step 3: Cross multiply
    118,055.52x = 162,921.01 × 67,076.89
  4. Step 4: Simplify right side
    118,055.52x = 10,928,234,067.52
  5. Step 5: Solve for x
    x = 10,928,234,067.52/118,055.52
  6. Step 6: Final answer
    x = 92,568.60

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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.