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Finding the Fourth Proportional to 202,396.26, 303,599.26 and 69,275.64

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Solution

The fourth proportional to 202,396.26, 303,599.26 and 69,275.64 is: 103,915.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,396.26 : 303,599.26 = 69,275.64 : x
  2. Step 2: Convert to fraction form
    202,396.26/303,599.26 = 69,275.64/x
  3. Step 3: Cross multiply
    202,396.26x = 303,599.26 × 69,275.64
  4. Step 4: Simplify right side
    202,396.26x = 21,032,033,040.03
  5. Step 5: Solve for x
    x = 21,032,033,040.03/202,396.26
  6. Step 6: Final answer
    x = 103,915.13

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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.