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Finding the Fourth Proportional to 318,348.48, 477,358.41 and 93,679.74

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Solution

The fourth proportional to 318,348.48, 477,358.41 and 93,679.74 is: 140,471.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,348.48 : 477,358.41 = 93,679.74 : x
  2. Step 2: Convert to fraction form
    318,348.48/477,358.41 = 93,679.74/x
  3. Step 3: Cross multiply
    318,348.48x = 477,358.41 × 93,679.74
  4. Step 4: Simplify right side
    318,348.48x = 44,718,811,735.61
  5. Step 5: Solve for x
    x = 44,718,811,735.61/318,348.48
  6. Step 6: Final answer
    x = 140,471.26

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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.