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Finding the Fourth Proportional to 318,052.46, 477,137.78 and 104,835.34

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Solution

The fourth proportional to 318,052.46, 477,137.78 and 104,835.34 is: 157,272.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,052.46 : 477,137.78 = 104,835.34 : x
  2. Step 2: Convert to fraction form
    318,052.46/477,137.78 = 104,835.34/x
  3. Step 3: Cross multiply
    318,052.46x = 477,137.78 × 104,835.34
  4. Step 4: Simplify right side
    318,052.46x = 50,020,899,191.16
  5. Step 5: Solve for x
    x = 50,020,899,191.16/318,052.46
  6. Step 6: Final answer
    x = 157,272.48

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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.