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Finding the Fourth Proportional to 57,806.26, 79,749.03 and 45,821.50

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Solution

The fourth proportional to 57,806.26, 79,749.03 and 45,821.50 is: 63,214.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,806.26 : 79,749.03 = 45,821.50 : x
  2. Step 2: Convert to fraction form
    57,806.26/79,749.03 = 45,821.50/x
  3. Step 3: Cross multiply
    57,806.26x = 79,749.03 × 45,821.50
  4. Step 4: Simplify right side
    57,806.26x = 3,654,220,178.15
  5. Step 5: Solve for x
    x = 3,654,220,178.15/57,806.26
  6. Step 6: Final answer
    x = 63,214.96

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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.