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Finding the Fourth Proportional to 268,470.48, 370,481.42 and 147,611.64

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Solution

The fourth proportional to 268,470.48, 370,481.42 and 147,611.64 is: 203,699.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,470.48 : 370,481.42 = 147,611.64 : x
  2. Step 2: Convert to fraction form
    268,470.48/370,481.42 = 147,611.64/x
  3. Step 3: Cross multiply
    268,470.48x = 370,481.42 × 147,611.64
  4. Step 4: Simplify right side
    268,470.48x = 54,687,369,995.73
  5. Step 5: Solve for x
    x = 54,687,369,995.73/268,470.48
  6. Step 6: Final answer
    x = 203,699.75

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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.