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Finding the Fourth Proportional to 171,379.49, 236,506.12 and 98,742.24

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Solution

The fourth proportional to 171,379.49, 236,506.12 and 98,742.24 is: 136,265.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,379.49 : 236,506.12 = 98,742.24 : x
  2. Step 2: Convert to fraction form
    171,379.49/236,506.12 = 98,742.24/x
  3. Step 3: Cross multiply
    171,379.49x = 236,506.12 × 98,742.24
  4. Step 4: Simplify right side
    171,379.49x = 23,353,143,815.65
  5. Step 5: Solve for x
    x = 23,353,143,815.65/171,379.49
  6. Step 6: Final answer
    x = 136,265.69

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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.