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Finding the Fourth Proportional to 422,490.68, 633,736.48 and 106,947.58

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Solution

The fourth proportional to 422,490.68, 633,736.48 and 106,947.58 is: 160,421.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,490.68 : 633,736.48 = 106,947.58 : x
  2. Step 2: Convert to fraction form
    422,490.68/633,736.48 = 106,947.58/x
  3. Step 3: Cross multiply
    422,490.68x = 633,736.48 × 106,947.58
  4. Step 4: Simplify right side
    422,490.68x = 67,776,582,893.72
  5. Step 5: Solve for x
    x = 67,776,582,893.72/422,490.68
  6. Step 6: Final answer
    x = 160,421.49

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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.