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Finding the Fourth Proportional to 318,314.10, 477,471.15 and 96,669.30

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Solution

The fourth proportional to 318,314.10, 477,471.15 and 96,669.30 is: 145,003.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,314.10 : 477,471.15 = 96,669.30 : x
  2. Step 2: Convert to fraction form
    318,314.10/477,471.15 = 96,669.30/x
  3. Step 3: Cross multiply
    318,314.10x = 477,471.15 × 96,669.30
  4. Step 4: Simplify right side
    318,314.10x = 46,156,801,840.70
  5. Step 5: Solve for x
    x = 46,156,801,840.70/318,314.10
  6. Step 6: Final answer
    x = 145,003.95

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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.