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Finding the Fourth Proportional to 268,751.76, 370,892.74 and 154,049.48

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Solution

The fourth proportional to 268,751.76, 370,892.74 and 154,049.48 is: 212,597.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,751.76 : 370,892.74 = 154,049.48 : x
  2. Step 2: Convert to fraction form
    268,751.76/370,892.74 = 154,049.48/x
  3. Step 3: Cross multiply
    268,751.76x = 370,892.74 × 154,049.48
  4. Step 4: Simplify right side
    268,751.76x = 57,135,833,732.78
  5. Step 5: Solve for x
    x = 57,135,833,732.78/268,751.76
  6. Step 6: Final answer
    x = 212,597.06

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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.