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Finding the Fourth Proportional to 202,824.75, 304,172.42 and 69,672.90

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Solution

The fourth proportional to 202,824.75, 304,172.42 and 69,672.90 is: 104,487.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,824.75 : 304,172.42 = 69,672.90 : x
  2. Step 2: Convert to fraction form
    202,824.75/304,172.42 = 69,672.90/x
  3. Step 3: Cross multiply
    202,824.75x = 304,172.42 × 69,672.90
  4. Step 4: Simplify right side
    202,824.75x = 21,192,574,775.60
  5. Step 5: Solve for x
    x = 21,192,574,775.60/202,824.75
  6. Step 6: Final answer
    x = 104,487.12

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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.