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Finding the Fourth Proportional to 266,578.40, 399,892.66 and 98,101.96

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Solution

The fourth proportional to 266,578.40, 399,892.66 and 98,101.96 is: 147,162.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,578.40 : 399,892.66 = 98,101.96 : x
  2. Step 2: Convert to fraction form
    266,578.40/399,892.66 = 98,101.96/x
  3. Step 3: Cross multiply
    266,578.40x = 399,892.66 × 98,101.96
  4. Step 4: Simplify right side
    266,578.40x = 39,230,253,735.61
  5. Step 5: Solve for x
    x = 39,230,253,735.61/266,578.40
  6. Step 6: Final answer
    x = 147,162.16

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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.