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Finding the Fourth Proportional to 72,574.91, 108,945.41 and 44,508.18

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Solution

The fourth proportional to 72,574.91, 108,945.41 and 44,508.18 is: 66,813.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,574.91 : 108,945.41 = 44,508.18 : x
  2. Step 2: Convert to fraction form
    72,574.91/108,945.41 = 44,508.18/x
  3. Step 3: Cross multiply
    72,574.91x = 108,945.41 × 44,508.18
  4. Step 4: Simplify right side
    72,574.91x = 4,848,962,104.46
  5. Step 5: Solve for x
    x = 4,848,962,104.46/72,574.91
  6. Step 6: Final answer
    x = 66,813.20

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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.