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Finding the Fourth Proportional to 74,480.62, 111,685.74 and 27,062.66

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Solution

The fourth proportional to 74,480.62, 111,685.74 and 27,062.66 is: 40,581.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,480.62 : 111,685.74 = 27,062.66 : x
  2. Step 2: Convert to fraction form
    74,480.62/111,685.74 = 27,062.66/x
  3. Step 3: Cross multiply
    74,480.62x = 111,685.74 × 27,062.66
  4. Step 4: Simplify right side
    74,480.62x = 3,022,513,208.47
  5. Step 5: Solve for x
    x = 3,022,513,208.47/74,480.62
  6. Step 6: Final answer
    x = 40,581.20

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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.