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Finding the Fourth Proportional to 191,093.52, 263,718 and 106,212

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Solution

The fourth proportional to 191,093.52, 263,718 and 106,212 is: 146,577.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,093.52 : 263,718 = 106,212 : x
  2. Step 2: Convert to fraction form
    191,093.52/263,718 = 106,212/x
  3. Step 3: Cross multiply
    191,093.52x = 263,718 × 106,212
  4. Step 4: Simplify right side
    191,093.52x = 28,010,016,216
  5. Step 5: Solve for x
    x = 28,010,016,216/191,093.52
  6. Step 6: Final answer
    x = 146,577.53

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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.