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Finding the Fourth Proportional to 291,251.88, 401,817.88 and 170,354.52

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Solution

The fourth proportional to 291,251.88, 401,817.88 and 170,354.52 is: 235,025.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,251.88 : 401,817.88 = 170,354.52 : x
  2. Step 2: Convert to fraction form
    291,251.88/401,817.88 = 170,354.52/x
  3. Step 3: Cross multiply
    291,251.88x = 401,817.88 × 170,354.52
  4. Step 4: Simplify right side
    291,251.88x = 68,451,492,074.82
  5. Step 5: Solve for x
    x = 68,451,492,074.82/291,251.88
  6. Step 6: Final answer
    x = 235,025.07

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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.