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Finding the Fourth Proportional to 72,855.29, 100,512.67 and 44,164.49

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Solution

The fourth proportional to 72,855.29, 100,512.67 and 44,164.49 is: 60,930.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,855.29 : 100,512.67 = 44,164.49 : x
  2. Step 2: Convert to fraction form
    72,855.29/100,512.67 = 44,164.49/x
  3. Step 3: Cross multiply
    72,855.29x = 100,512.67 × 44,164.49
  4. Step 4: Simplify right side
    72,855.29x = 4,439,090,809.09
  5. Step 5: Solve for x
    x = 4,439,090,809.09/72,855.29
  6. Step 6: Final answer
    x = 60,930.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.