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Finding the Fourth Proportional to 318,345.49, 477,353.91 and 93,676.73

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Solution

The fourth proportional to 318,345.49, 477,353.91 and 93,676.73 is: 140,466.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,345.49 : 477,353.91 = 93,676.73 : x
  2. Step 2: Convert to fraction form
    318,345.49/477,353.91 = 93,676.73/x
  3. Step 3: Cross multiply
    318,345.49x = 477,353.91 × 93,676.73
  4. Step 4: Simplify right side
    318,345.49x = 44,716,952,121.66
  5. Step 5: Solve for x
    x = 44,716,952,121.66/318,345.49
  6. Step 6: Final answer
    x = 140,466.74

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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.