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Finding the Fourth Proportional to 191,051.62, 263,652.78 and 119,473.14

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Solution

The fourth proportional to 191,051.62, 263,652.78 and 119,473.14 is: 164,873.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,051.62 : 263,652.78 = 119,473.14 : x
  2. Step 2: Convert to fraction form
    191,051.62/263,652.78 = 119,473.14/x
  3. Step 3: Cross multiply
    191,051.62x = 263,652.78 × 119,473.14
  4. Step 4: Simplify right side
    191,051.62x = 31,499,425,496.33
  5. Step 5: Solve for x
    x = 31,499,425,496.33/191,051.62
  6. Step 6: Final answer
    x = 164,873.90

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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.