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Finding the Fourth Proportional to 98,906.67, 148,418.46 and 36,620.91

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Solution

The fourth proportional to 98,906.67, 148,418.46 and 36,620.91 is: 54,953.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,906.67 : 148,418.46 = 36,620.91 : x
  2. Step 2: Convert to fraction form
    98,906.67/148,418.46 = 36,620.91/x
  3. Step 3: Cross multiply
    98,906.67x = 148,418.46 × 36,620.91
  4. Step 4: Simplify right side
    98,906.67x = 5,435,219,066.00
  5. Step 5: Solve for x
    x = 5,435,219,066.00/98,906.67
  6. Step 6: Final answer
    x = 54,953.01

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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.