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Finding the Fourth Proportional to 202,425.97, 303,435.74 and 69,215.12

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Solution

The fourth proportional to 202,425.97, 303,435.74 and 69,215.12 is: 103,753.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,425.97 : 303,435.74 = 69,215.12 : x
  2. Step 2: Convert to fraction form
    202,425.97/303,435.74 = 69,215.12/x
  3. Step 3: Cross multiply
    202,425.97x = 303,435.74 × 69,215.12
  4. Step 4: Simplify right side
    202,425.97x = 21,002,341,156.39
  5. Step 5: Solve for x
    x = 21,002,341,156.39/202,425.97
  6. Step 6: Final answer
    x = 103,753.20

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1.5x scale

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.