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Finding the Fourth Proportional to 168,805.82, 253,333.11 and 80,059.58

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Solution

The fourth proportional to 168,805.82, 253,333.11 and 80,059.58 is: 120,148.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,805.82 : 253,333.11 = 80,059.58 : x
  2. Step 2: Convert to fraction form
    168,805.82/253,333.11 = 80,059.58/x
  3. Step 3: Cross multiply
    168,805.82x = 253,333.11 × 80,059.58
  4. Step 4: Simplify right side
    168,805.82x = 20,281,742,386.69
  5. Step 5: Solve for x
    x = 20,281,742,386.69/168,805.82
  6. Step 6: Final answer
    x = 120,148.36

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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.