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Finding the Fourth Proportional to 202,938.95, 304,405.23 and 69,820.36

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Solution

The fourth proportional to 202,938.95, 304,405.23 and 69,820.36 is: 104,729.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,938.95 : 304,405.23 = 69,820.36 : x
  2. Step 2: Convert to fraction form
    202,938.95/304,405.23 = 69,820.36/x
  3. Step 3: Cross multiply
    202,938.95x = 304,405.23 × 69,820.36
  4. Step 4: Simplify right side
    202,938.95x = 21,253,682,744.48
  5. Step 5: Solve for x
    x = 21,253,682,744.48/202,938.95
  6. Step 6: Final answer
    x = 104,729.44

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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.