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Finding the Fourth Proportional to 667,995.75, 1,001,995.64 and 162,556.81

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Solution

The fourth proportional to 667,995.75, 1,001,995.64 and 162,556.81 is: 243,835.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,995.75 : 1,001,995.64 = 162,556.81 : x
  2. Step 2: Convert to fraction form
    667,995.75/1,001,995.64 = 162,556.81/x
  3. Step 3: Cross multiply
    667,995.75x = 1,001,995.64 × 162,556.81
  4. Step 4: Simplify right side
    667,995.75x = 162,881,215,278.70
  5. Step 5: Solve for x
    x = 162,881,215,278.70/667,995.75
  6. Step 6: Final answer
    x = 243,835.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.