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Finding the Fourth Proportional to 318,367.99, 477,450.87 and 105,096.34

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Solution

The fourth proportional to 318,367.99, 477,450.87 and 105,096.34 is: 157,611.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,367.99 : 477,450.87 = 105,096.34 : x
  2. Step 2: Convert to fraction form
    318,367.99/477,450.87 = 105,096.34/x
  3. Step 3: Cross multiply
    318,367.99x = 477,450.87 × 105,096.34
  4. Step 4: Simplify right side
    318,367.99x = 50,178,338,966.82
  5. Step 5: Solve for x
    x = 50,178,338,966.82/318,367.99
  6. Step 6: Final answer
    x = 157,611.13

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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.