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Finding the Fourth Proportional to 247,842.90, 371,555.37 and 107,495.82

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Solution

The fourth proportional to 247,842.90, 371,555.37 and 107,495.82 is: 161,153.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,842.90 : 371,555.37 = 107,495.82 : x
  2. Step 2: Convert to fraction form
    247,842.90/371,555.37 = 107,495.82/x
  3. Step 3: Cross multiply
    247,842.90x = 371,555.37 × 107,495.82
  4. Step 4: Simplify right side
    247,842.90x = 39,940,649,173.55
  5. Step 5: Solve for x
    x = 39,940,649,173.55/247,842.90
  6. Step 6: Final answer
    x = 161,153.09

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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.