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Finding the Fourth Proportional to 203,069.42, 304,883.64 and 103,297.13

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Solution

The fourth proportional to 203,069.42, 304,883.64 and 103,297.13 is: 155,087.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,069.42 : 304,883.64 = 103,297.13 : x
  2. Step 2: Convert to fraction form
    203,069.42/304,883.64 = 103,297.13/x
  3. Step 3: Cross multiply
    203,069.42x = 304,883.64 × 103,297.13
  4. Step 4: Simplify right side
    203,069.42x = 31,493,604,995.95
  5. Step 5: Solve for x
    x = 31,493,604,995.95/203,069.42
  6. Step 6: Final answer
    x = 155,087.88

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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.