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Finding the Fourth Proportional to 202,438.84, 303,627.04 and 69,288.52

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Solution

The fourth proportional to 202,438.84, 303,627.04 and 69,288.52 is: 103,922.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,438.84 : 303,627.04 = 69,288.52 : x
  2. Step 2: Convert to fraction form
    202,438.84/303,627.04 = 69,288.52/x
  3. Step 3: Cross multiply
    202,438.84x = 303,627.04 × 69,288.52
  4. Step 4: Simplify right side
    202,438.84x = 21,037,868,233.58
  5. Step 5: Solve for x
    x = 21,037,868,233.58/202,438.84
  6. Step 6: Final answer
    x = 103,922.09

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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.