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Finding the Fourth Proportional to 202,800.30, 304,207.52 and 69,679.60

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Solution

The fourth proportional to 202,800.30, 304,207.52 and 69,679.60 is: 104,521.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,800.30 : 304,207.52 = 69,679.60 : x
  2. Step 2: Convert to fraction form
    202,800.30/304,207.52 = 69,679.60/x
  3. Step 3: Cross multiply
    202,800.30x = 304,207.52 × 69,679.60
  4. Step 4: Simplify right side
    202,800.30x = 21,197,058,310.59
  5. Step 5: Solve for x
    x = 21,197,058,310.59/202,800.30
  6. Step 6: Final answer
    x = 104,521.83

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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.