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Finding the Fourth Proportional to 74,099.92, 111,149.32 and 62,980.24

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Solution

The fourth proportional to 74,099.92, 111,149.32 and 62,980.24 is: 94,469.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,099.92 : 111,149.32 = 62,980.24 : x
  2. Step 2: Convert to fraction form
    74,099.92/111,149.32 = 62,980.24/x
  3. Step 3: Cross multiply
    74,099.92x = 111,149.32 × 62,980.24
  4. Step 4: Simplify right side
    74,099.92x = 7,000,210,849.44
  5. Step 5: Solve for x
    x = 7,000,210,849.44/74,099.92
  6. Step 6: Final answer
    x = 94,469.88

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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.