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Finding the Fourth Proportional to 74,185.76, 111,200.88 and 27,408.80

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Solution

The fourth proportional to 74,185.76, 111,200.88 and 27,408.80 is: 41,084.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,185.76 : 111,200.88 = 27,408.80 : x
  2. Step 2: Convert to fraction form
    74,185.76/111,200.88 = 27,408.80/x
  3. Step 3: Cross multiply
    74,185.76x = 111,200.88 × 27,408.80
  4. Step 4: Simplify right side
    74,185.76x = 3,047,882,679.74
  5. Step 5: Solve for x
    x = 3,047,882,679.74/74,185.76
  6. Step 6: Final answer
    x = 41,084.47

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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.