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Finding the Fourth Proportional to 74,104.60, 111,229.80 and 36,706.90

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Solution

The fourth proportional to 74,104.60, 111,229.80 and 36,706.90 is: 55,096.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,104.60 : 111,229.80 = 36,706.90 : x
  2. Step 2: Convert to fraction form
    74,104.60/111,229.80 = 36,706.90/x
  3. Step 3: Cross multiply
    74,104.60x = 111,229.80 × 36,706.90
  4. Step 4: Simplify right side
    74,104.60x = 4,082,901,145.62
  5. Step 5: Solve for x
    x = 4,082,901,145.62/74,104.60
  6. Step 6: Final answer
    x = 55,096.46

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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.