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Finding the Fourth Proportional to 266,120.98, 399,187.14 and 95,353.85

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Solution

The fourth proportional to 266,120.98, 399,187.14 and 95,353.85 is: 143,032.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,120.98 : 399,187.14 = 95,353.85 : x
  2. Step 2: Convert to fraction form
    266,120.98/399,187.14 = 95,353.85/x
  3. Step 3: Cross multiply
    266,120.98x = 399,187.14 × 95,353.85
  4. Step 4: Simplify right side
    266,120.98x = 38,064,029,600.82
  5. Step 5: Solve for x
    x = 38,064,029,600.82/266,120.98
  6. Step 6: Final answer
    x = 143,032.80

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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.