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Finding the Fourth Proportional to 140,078.22, 210,079.17 and 46,571.82

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Solution

The fourth proportional to 140,078.22, 210,079.17 and 46,571.82 is: 69,845.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,078.22 : 210,079.17 = 46,571.82 : x
  2. Step 2: Convert to fraction form
    140,078.22/210,079.17 = 46,571.82/x
  3. Step 3: Cross multiply
    140,078.22x = 210,079.17 × 46,571.82
  4. Step 4: Simplify right side
    140,078.22x = 9,783,769,290.99
  5. Step 5: Solve for x
    x = 9,783,769,290.99/140,078.22
  6. Step 6: Final answer
    x = 69,845.04

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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.