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Finding the Fourth Proportional to 203,056.47, 304,517.88 and 69,933.78

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Solution

The fourth proportional to 203,056.47, 304,517.88 and 69,933.78 is: 104,877.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,056.47 : 304,517.88 = 69,933.78 : x
  2. Step 2: Convert to fraction form
    203,056.47/304,517.88 = 69,933.78/x
  3. Step 3: Cross multiply
    203,056.47x = 304,517.88 × 69,933.78
  4. Step 4: Simplify right side
    203,056.47x = 21,296,086,425.99
  5. Step 5: Solve for x
    x = 21,296,086,425.99/203,056.47
  6. Step 6: Final answer
    x = 104,877.66

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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.