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Finding the Fourth Proportional to 318,494.40, 477,664.74 and 93,793.80

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Solution

The fourth proportional to 318,494.40, 477,664.74 and 93,793.80 is: 140,668.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,494.40 : 477,664.74 = 93,793.80 : x
  2. Step 2: Convert to fraction form
    318,494.40/477,664.74 = 93,793.80/x
  3. Step 3: Cross multiply
    318,494.40x = 477,664.74 × 93,793.80
  4. Step 4: Simplify right side
    318,494.40x = 44,801,991,090.61
  5. Step 5: Solve for x
    x = 44,801,991,090.61/318,494.40
  6. Step 6: Final answer
    x = 140,668.07

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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.