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Finding the Fourth Proportional to 422,620.66, 633,967.90 and 107,077.57

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Solution

The fourth proportional to 422,620.66, 633,967.90 and 107,077.57 is: 160,625.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,620.66 : 633,967.90 = 107,077.57 : x
  2. Step 2: Convert to fraction form
    422,620.66/633,967.90 = 107,077.57/x
  3. Step 3: Cross multiply
    422,620.66x = 633,967.90 × 107,077.57
  4. Step 4: Simplify right side
    422,620.66x = 67,883,742,572.16
  5. Step 5: Solve for x
    x = 67,883,742,572.16/422,620.66
  6. Step 6: Final answer
    x = 160,625.71

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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.