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Finding the Fourth Proportional to 55,653.87, 83,175.28 and 40,692.48

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Solution

The fourth proportional to 55,653.87, 83,175.28 and 40,692.48 is: 60,815.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,653.87 : 83,175.28 = 40,692.48 : x
  2. Step 2: Convert to fraction form
    55,653.87/83,175.28 = 40,692.48/x
  3. Step 3: Cross multiply
    55,653.87x = 83,175.28 × 40,692.48
  4. Step 4: Simplify right side
    55,653.87x = 3,384,608,701.01
  5. Step 5: Solve for x
    x = 3,384,608,701.01/55,653.87
  6. Step 6: Final answer
    x = 60,815.34

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.