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Finding the Fourth Proportional to 95,910.30, 143,865.45 and 84,246.30

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Solution

The fourth proportional to 95,910.30, 143,865.45 and 84,246.30 is: 126,369.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,910.30 : 143,865.45 = 84,246.30 : x
  2. Step 2: Convert to fraction form
    95,910.30/143,865.45 = 84,246.30/x
  3. Step 3: Cross multiply
    95,910.30x = 143,865.45 × 84,246.30
  4. Step 4: Simplify right side
    95,910.30x = 12,120,131,860.34
  5. Step 5: Solve for x
    x = 12,120,131,860.34/95,910.30
  6. Step 6: Final answer
    x = 126,369.45

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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.