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Finding the Fourth Proportional to 118,171.47, 177,198.03 and 39,258.03

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Solution

The fourth proportional to 118,171.47, 177,198.03 and 39,258.03 is: 58,867.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,171.47 : 177,198.03 = 39,258.03 : x
  2. Step 2: Convert to fraction form
    118,171.47/177,198.03 = 39,258.03/x
  3. Step 3: Cross multiply
    118,171.47x = 177,198.03 × 39,258.03
  4. Step 4: Simplify right side
    118,171.47x = 6,956,445,577.68
  5. Step 5: Solve for x
    x = 6,956,445,577.68/118,171.47
  6. Step 6: Final answer
    x = 58,867.39

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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.