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Finding the Fourth Proportional to 266,550.10, 399,770.46 and 98,011.66

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Solution

The fourth proportional to 266,550.10, 399,770.46 and 98,011.66 is: 146,997.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,550.10 : 399,770.46 = 98,011.66 : x
  2. Step 2: Convert to fraction form
    266,550.10/399,770.46 = 98,011.66/x
  3. Step 3: Cross multiply
    266,550.10x = 399,770.46 × 98,011.66
  4. Step 4: Simplify right side
    266,550.10x = 39,182,166,403.56
  5. Step 5: Solve for x
    x = 39,182,166,403.56/266,550.10
  6. Step 6: Final answer
    x = 146,997.38

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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.