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Finding the Fourth Proportional to 268,677.88, 370,775.46 and 147,816.56

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Solution

The fourth proportional to 268,677.88, 370,775.46 and 147,816.56 is: 203,986.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,677.88 : 370,775.46 = 147,816.56 : x
  2. Step 2: Convert to fraction form
    268,677.88/370,775.46 = 147,816.56/x
  3. Step 3: Cross multiply
    268,677.88x = 370,775.46 × 147,816.56
  4. Step 4: Simplify right side
    268,677.88x = 54,806,753,029.62
  5. Step 5: Solve for x
    x = 54,806,753,029.62/268,677.88
  6. Step 6: Final answer
    x = 203,986.84

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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.