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Finding the Fourth Proportional to 400,625.44, 600,899.04 and 105,137.44

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Solution

The fourth proportional to 400,625.44, 600,899.04 and 105,137.44 is: 157,695.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,625.44 : 600,899.04 = 105,137.44 : x
  2. Step 2: Convert to fraction form
    400,625.44/600,899.04 = 105,137.44/x
  3. Step 3: Cross multiply
    400,625.44x = 600,899.04 × 105,137.44
  4. Step 4: Simplify right side
    400,625.44x = 63,176,986,764.06
  5. Step 5: Solve for x
    x = 63,176,986,764.06/400,625.44
  6. Step 6: Final answer
    x = 157,695.89

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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.