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Finding the Fourth Proportional to 275,191.65, 379,765.14 and 160,549.11

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Solution

The fourth proportional to 275,191.65, 379,765.14 and 160,549.11 is: 221,558.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,191.65 : 379,765.14 = 160,549.11 : x
  2. Step 2: Convert to fraction form
    275,191.65/379,765.14 = 160,549.11/x
  3. Step 3: Cross multiply
    275,191.65x = 379,765.14 × 160,549.11
  4. Step 4: Simplify right side
    275,191.65x = 60,970,955,236.03
  5. Step 5: Solve for x
    x = 60,970,955,236.03/275,191.65
  6. Step 6: Final answer
    x = 221,558.16

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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.