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Finding the Fourth Proportional to 422,737.32, 634,128.28 and 107,196.96

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Solution

The fourth proportional to 422,737.32, 634,128.28 and 107,196.96 is: 160,801.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,737.32 : 634,128.28 = 107,196.96 : x
  2. Step 2: Convert to fraction form
    422,737.32/634,128.28 = 107,196.96/x
  3. Step 3: Cross multiply
    422,737.32x = 634,128.28 × 107,196.96
  4. Step 4: Simplify right side
    422,737.32x = 67,976,623,866.03
  5. Step 5: Solve for x
    x = 67,976,623,866.03/422,737.32
  6. Step 6: Final answer
    x = 160,801.09

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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.