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Finding the Fourth Proportional to 101,613.69, 152,474.81 and 76,480.94

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Solution

The fourth proportional to 101,613.69, 152,474.81 and 76,480.94 is: 114,762.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,613.69 : 152,474.81 = 76,480.94 : x
  2. Step 2: Convert to fraction form
    101,613.69/152,474.81 = 76,480.94/x
  3. Step 3: Cross multiply
    101,613.69x = 152,474.81 × 76,480.94
  4. Step 4: Simplify right side
    101,613.69x = 11,661,416,793.90
  5. Step 5: Solve for x
    x = 11,661,416,793.90/101,613.69
  6. Step 6: Final answer
    x = 114,762.26

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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.