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Finding the Fourth Proportional to 352,157.36, 485,974.32 and 191,012

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Solution

The fourth proportional to 352,157.36, 485,974.32 and 191,012 is: 263,595.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,157.36 : 485,974.32 = 191,012 : x
  2. Step 2: Convert to fraction form
    352,157.36/485,974.32 = 191,012/x
  3. Step 3: Cross multiply
    352,157.36x = 485,974.32 × 191,012
  4. Step 4: Simplify right side
    352,157.36x = 92,826,926,811.84
  5. Step 5: Solve for x
    x = 92,826,926,811.84/352,157.36
  6. Step 6: Final answer
    x = 263,595.02

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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.