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Finding the Fourth Proportional to 74,468.24, 102,789.17 and 45,796.67

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Solution

The fourth proportional to 74,468.24, 102,789.17 and 45,796.67 is: 63,213.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,468.24 : 102,789.17 = 45,796.67 : x
  2. Step 2: Convert to fraction form
    74,468.24/102,789.17 = 45,796.67/x
  3. Step 3: Cross multiply
    74,468.24x = 102,789.17 × 45,796.67
  4. Step 4: Simplify right side
    74,468.24x = 4,707,401,698.06
  5. Step 5: Solve for x
    x = 4,707,401,698.06/74,468.24
  6. Step 6: Final answer
    x = 63,213.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.