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Finding the Fourth Proportional to 318,364.50, 477,549.99 and 96,748.50

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Solution

The fourth proportional to 318,364.50, 477,549.99 and 96,748.50 is: 145,123.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,364.50 : 477,549.99 = 96,748.50 : x
  2. Step 2: Convert to fraction form
    318,364.50/477,549.99 = 96,748.50/x
  3. Step 3: Cross multiply
    318,364.50x = 477,549.99 × 96,748.50
  4. Step 4: Simplify right side
    318,364.50x = 46,202,245,207.52
  5. Step 5: Solve for x
    x = 46,202,245,207.52/318,364.50
  6. Step 6: Final answer
    x = 145,123.73

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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.