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Finding the Fourth Proportional to 98,379.74, 147,481.94 and 36,035.66

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Solution

The fourth proportional to 98,379.74, 147,481.94 and 36,035.66 is: 54,021.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,379.74 : 147,481.94 = 36,035.66 : x
  2. Step 2: Convert to fraction form
    98,379.74/147,481.94 = 36,035.66/x
  3. Step 3: Cross multiply
    98,379.74x = 147,481.94 × 36,035.66
  4. Step 4: Simplify right side
    98,379.74x = 5,314,609,045.98
  5. Step 5: Solve for x
    x = 5,314,609,045.98/98,379.74
  6. Step 6: Final answer
    x = 54,021.38

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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.