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Finding the Fourth Proportional to 87,846.74, 131,722.71 and 45,622.65

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Solution

The fourth proportional to 87,846.74, 131,722.71 and 45,622.65 is: 68,409.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,846.74 : 131,722.71 = 45,622.65 : x
  2. Step 2: Convert to fraction form
    87,846.74/131,722.71 = 45,622.65/x
  3. Step 3: Cross multiply
    87,846.74x = 131,722.71 × 45,622.65
  4. Step 4: Simplify right side
    87,846.74x = 6,009,539,095.38
  5. Step 5: Solve for x
    x = 6,009,539,095.38/87,846.74
  6. Step 6: Final answer
    x = 68,409.36

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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.