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Finding the Fourth Proportional to 179,262.72, 247,380.72 and 98,689.20

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Solution

The fourth proportional to 179,262.72, 247,380.72 and 98,689.20 is: 136,190.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,262.72 : 247,380.72 = 98,689.20 : x
  2. Step 2: Convert to fraction form
    179,262.72/247,380.72 = 98,689.20/x
  3. Step 3: Cross multiply
    179,262.72x = 247,380.72 × 98,689.20
  4. Step 4: Simplify right side
    179,262.72x = 24,413,805,352.22
  5. Step 5: Solve for x
    x = 24,413,805,352.22/179,262.72
  6. Step 6: Final answer
    x = 136,190.09

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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.