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Finding the Fourth Proportional to 352,336.95, 486,222.53 and 191,187.90

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Solution

The fourth proportional to 352,336.95, 486,222.53 and 191,187.90 is: 263,837.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,336.95 : 486,222.53 = 191,187.90 : x
  2. Step 2: Convert to fraction form
    352,336.95/486,222.53 = 191,187.90/x
  3. Step 3: Cross multiply
    352,336.95x = 486,222.53 × 191,187.90
  4. Step 4: Simplify right side
    352,336.95x = 92,959,863,487.45
  5. Step 5: Solve for x
    x = 92,959,863,487.45/352,336.95
  6. Step 6: Final answer
    x = 263,837.96

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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.