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Finding the Fourth Proportional to 72,466.87, 108,707.75 and 25,081.88

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Solution

The fourth proportional to 72,466.87, 108,707.75 and 25,081.88 is: 37,625.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,466.87 : 108,707.75 = 25,081.88 : x
  2. Step 2: Convert to fraction form
    72,466.87/108,707.75 = 25,081.88/x
  3. Step 3: Cross multiply
    72,466.87x = 108,707.75 × 25,081.88
  4. Step 4: Simplify right side
    72,466.87x = 2,726,594,913.04
  5. Step 5: Solve for x
    x = 2,726,594,913.04/72,466.87
  6. Step 6: Final answer
    x = 37,625.40

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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.