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Finding the Fourth Proportional to 318,542.34, 477,802.88 and 93,906.48

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Solution

The fourth proportional to 318,542.34, 477,802.88 and 93,906.48 is: 140,856.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,542.34 : 477,802.88 = 93,906.48 : x
  2. Step 2: Convert to fraction form
    318,542.34/477,802.88 = 93,906.48/x
  3. Step 3: Cross multiply
    318,542.34x = 477,802.88 × 93,906.48
  4. Step 4: Simplify right side
    318,542.34x = 44,868,786,594.66
  5. Step 5: Solve for x
    x = 44,868,786,594.66/318,542.34
  6. Step 6: Final answer
    x = 140,856.59

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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.