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Finding the Fourth Proportional to 72,167.76, 108,265.08 and 25,450.32

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Solution

The fourth proportional to 72,167.76, 108,265.08 and 25,450.32 is: 38,180.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,167.76 : 108,265.08 = 25,450.32 : x
  2. Step 2: Convert to fraction form
    72,167.76/108,265.08 = 25,450.32/x
  3. Step 3: Cross multiply
    72,167.76x = 108,265.08 × 25,450.32
  4. Step 4: Simplify right side
    72,167.76x = 2,755,380,930.83
  5. Step 5: Solve for x
    x = 2,755,380,930.83/72,167.76
  6. Step 6: Final answer
    x = 38,180.22

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1.5x scale

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.