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Finding the Fourth Proportional to 203,053.26, 304,600.29 and 69,915.90

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Solution

The fourth proportional to 203,053.26, 304,600.29 and 69,915.90 is: 104,880.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,053.26 : 304,600.29 = 69,915.90 : x
  2. Step 2: Convert to fraction form
    203,053.26/304,600.29 = 69,915.90/x
  3. Step 3: Cross multiply
    203,053.26x = 304,600.29 × 69,915.90
  4. Step 4: Simplify right side
    203,053.26x = 21,296,403,415.61
  5. Step 5: Solve for x
    x = 21,296,403,415.61/203,053.26
  6. Step 6: Final answer
    x = 104,880.87

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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.