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Finding the Fourth Proportional to 401,045.60, 601,605.52 and 131,175.27

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Solution

The fourth proportional to 401,045.60, 601,605.52 and 131,175.27 is: 196,775.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,045.60 : 601,605.52 = 131,175.27 : x
  2. Step 2: Convert to fraction form
    401,045.60/601,605.52 = 131,175.27/x
  3. Step 3: Cross multiply
    401,045.60x = 601,605.52 × 131,175.27
  4. Step 4: Simplify right side
    401,045.60x = 78,915,766,191.55
  5. Step 5: Solve for x
    x = 78,915,766,191.55/401,045.60
  6. Step 6: Final answer
    x = 196,775.04

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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.