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Finding the Fourth Proportional to 143,792.72, 198,425.70 and 82,525.94

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Solution

The fourth proportional to 143,792.72, 198,425.70 and 82,525.94 is: 113,881.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,792.72 : 198,425.70 = 82,525.94 : x
  2. Step 2: Convert to fraction form
    143,792.72/198,425.70 = 82,525.94/x
  3. Step 3: Cross multiply
    143,792.72x = 198,425.70 × 82,525.94
  4. Step 4: Simplify right side
    143,792.72x = 16,375,267,164.63
  5. Step 5: Solve for x
    x = 16,375,267,164.63/143,792.72
  6. Step 6: Final answer
    x = 113,881.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.