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Finding the Fourth Proportional to 318,123.96, 477,247.14 and 104,953.56

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Solution

The fourth proportional to 318,123.96, 477,247.14 and 104,953.56 is: 157,450.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,123.96 : 477,247.14 = 104,953.56 : x
  2. Step 2: Convert to fraction form
    318,123.96/477,247.14 = 104,953.56/x
  3. Step 3: Cross multiply
    318,123.96x = 477,247.14 × 104,953.56
  4. Step 4: Simplify right side
    318,123.96x = 50,088,786,342.82
  5. Step 5: Solve for x
    x = 50,088,786,342.82/318,123.96
  6. Step 6: Final answer
    x = 157,450.53

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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.