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Finding the Fourth Proportional to 401,074.96, 601,601.10 and 134,850.64

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Solution

The fourth proportional to 401,074.96, 601,601.10 and 134,850.64 is: 202,272.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,074.96 : 601,601.10 = 134,850.64 : x
  2. Step 2: Convert to fraction form
    401,074.96/601,601.10 = 134,850.64/x
  3. Step 3: Cross multiply
    401,074.96x = 601,601.10 × 134,850.64
  4. Step 4: Simplify right side
    401,074.96x = 81,126,293,359.70
  5. Step 5: Solve for x
    x = 81,126,293,359.70/401,074.96
  6. Step 6: Final answer
    x = 202,272.15

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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.