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Finding the Fourth Proportional to 74,469.20, 104,023.60 and 74,469.20

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Solution

The fourth proportional to 74,469.20, 104,023.60 and 74,469.20 is: 104,023.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,469.20 : 104,023.60 = 74,469.20 : x
  2. Step 2: Convert to fraction form
    74,469.20/104,023.60 = 74,469.20/x
  3. Step 3: Cross multiply
    74,469.20x = 104,023.60 × 74,469.20
  4. Step 4: Simplify right side
    74,469.20x = 7,746,554,273.12
  5. Step 5: Solve for x
    x = 7,746,554,273.12/74,469.20
  6. Step 6: Final answer
    x = 104,023.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.