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Finding the Fourth Proportional to 352,160.86, 485,979.15 and 191,015.50

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Solution

The fourth proportional to 352,160.86, 485,979.15 and 191,015.50 is: 263,599.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,160.86 : 485,979.15 = 191,015.50 : x
  2. Step 2: Convert to fraction form
    352,160.86/485,979.15 = 191,015.50/x
  3. Step 3: Cross multiply
    352,160.86x = 485,979.15 × 191,015.50
  4. Step 4: Simplify right side
    352,160.86x = 92,829,550,326.83
  5. Step 5: Solve for x
    x = 92,829,550,326.83/352,160.86
  6. Step 6: Final answer
    x = 263,599.85

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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.