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Finding the Fourth Proportional to 179,687.90, 247,968.14 and 98,020.67

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Solution

The fourth proportional to 179,687.90, 247,968.14 and 98,020.67 is: 135,267.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,687.90 : 247,968.14 = 98,020.67 : x
  2. Step 2: Convert to fraction form
    179,687.90/247,968.14 = 98,020.67/x
  3. Step 3: Cross multiply
    179,687.90x = 247,968.14 × 98,020.67
  4. Step 4: Simplify right side
    179,687.90x = 24,306,001,491.51
  5. Step 5: Solve for x
    x = 24,306,001,491.51/179,687.90
  6. Step 6: Final answer
    x = 135,267.88

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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.