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Finding the Fourth Proportional to 291,066.82, 401,611.62 and 170,184.64

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Solution

The fourth proportional to 291,066.82, 401,611.62 and 170,184.64 is: 234,819.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,066.82 : 401,611.62 = 170,184.64 : x
  2. Step 2: Convert to fraction form
    291,066.82/401,611.62 = 170,184.64/x
  3. Step 3: Cross multiply
    291,066.82x = 401,611.62 × 170,184.64
  4. Step 4: Simplify right side
    291,066.82x = 68,348,128,969.52
  5. Step 5: Solve for x
    x = 68,348,128,969.52/291,066.82
  6. Step 6: Final answer
    x = 234,819.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.