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Finding the Fourth Proportional to 103,253.21, 154,879.83 and 36,695.97

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Solution

The fourth proportional to 103,253.21, 154,879.83 and 36,695.97 is: 55,043.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,253.21 : 154,879.83 = 36,695.97 : x
  2. Step 2: Convert to fraction form
    103,253.21/154,879.83 = 36,695.97/x
  3. Step 3: Cross multiply
    103,253.21x = 154,879.83 × 36,695.97
  4. Step 4: Simplify right side
    103,253.21x = 5,683,465,457.68
  5. Step 5: Solve for x
    x = 5,683,465,457.68/103,253.21
  6. Step 6: Final answer
    x = 55,043.96

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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.