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Finding the Fourth Proportional to 79,245.28, 118,722.12 and 49,657.60

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Solution

The fourth proportional to 79,245.28, 118,722.12 and 49,657.60 is: 74,395.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,245.28 : 118,722.12 = 49,657.60 : x
  2. Step 2: Convert to fraction form
    79,245.28/118,722.12 = 49,657.60/x
  3. Step 3: Cross multiply
    79,245.28x = 118,722.12 × 49,657.60
  4. Step 4: Simplify right side
    79,245.28x = 5,895,455,546.11
  5. Step 5: Solve for x
    x = 5,895,455,546.11/79,245.28
  6. Step 6: Final answer
    x = 74,395.04

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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.