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Finding the Fourth Proportional to 101,859, 152,849.94 and 43,491

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Solution

The fourth proportional to 101,859, 152,849.94 and 43,491 is: 65,262.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,859 : 152,849.94 = 43,491 : x
  2. Step 2: Convert to fraction form
    101,859/152,849.94 = 43,491/x
  3. Step 3: Cross multiply
    101,859x = 152,849.94 × 43,491
  4. Step 4: Simplify right side
    101,859x = 6,647,596,740.54
  5. Step 5: Solve for x
    x = 6,647,596,740.54/101,859
  6. Step 6: Final answer
    x = 65,262.73

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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.