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Finding the Fourth Proportional to 168,682.18, 253,019.24 and 54,829.86

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Solution

The fourth proportional to 168,682.18, 253,019.24 and 54,829.86 is: 82,243.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,682.18 : 253,019.24 = 54,829.86 : x
  2. Step 2: Convert to fraction form
    168,682.18/253,019.24 = 54,829.86/x
  3. Step 3: Cross multiply
    168,682.18x = 253,019.24 × 54,829.86
  4. Step 4: Simplify right side
    168,682.18x = 13,873,009,506.51
  5. Step 5: Solve for x
    x = 13,873,009,506.51/168,682.18
  6. Step 6: Final answer
    x = 82,243.48

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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.