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Finding the Fourth Proportional to 179,012.97, 247,043.93 and 98,443.89

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Solution

The fourth proportional to 179,012.97, 247,043.93 and 98,443.89 is: 135,855.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,012.97 : 247,043.93 = 98,443.89 : x
  2. Step 2: Convert to fraction form
    179,012.97/247,043.93 = 98,443.89/x
  3. Step 3: Cross multiply
    179,012.97x = 247,043.93 × 98,443.89
  4. Step 4: Simplify right side
    179,012.97x = 24,319,964,977.87
  5. Step 5: Solve for x
    x = 24,319,964,977.87/179,012.97
  6. Step 6: Final answer
    x = 135,855.88

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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.