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Finding the Fourth Proportional to 95,874.30, 143,811.45 and 72,546.30

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Solution

The fourth proportional to 95,874.30, 143,811.45 and 72,546.30 is: 108,819.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,874.30 : 143,811.45 = 72,546.30 : x
  2. Step 2: Convert to fraction form
    95,874.30/143,811.45 = 72,546.30/x
  3. Step 3: Cross multiply
    95,874.30x = 143,811.45 × 72,546.30
  4. Step 4: Simplify right side
    95,874.30x = 10,432,988,595.14
  5. Step 5: Solve for x
    x = 10,432,988,595.14/95,874.30
  6. Step 6: Final answer
    x = 108,819.45

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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.