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Finding the Fourth Proportional to 66,151.76, 91,269.29 and 37,466.87

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Solution

The fourth proportional to 66,151.76, 91,269.29 and 37,466.87 is: 51,692.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,151.76 : 91,269.29 = 37,466.87 : x
  2. Step 2: Convert to fraction form
    66,151.76/91,269.29 = 37,466.87/x
  3. Step 3: Cross multiply
    66,151.76x = 91,269.29 × 37,466.87
  4. Step 4: Simplify right side
    66,151.76x = 3,419,574,260.74
  5. Step 5: Solve for x
    x = 3,419,574,260.74/66,151.76
  6. Step 6: Final answer
    x = 51,692.87

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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.