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Finding the Fourth Proportional to 68,211.80, 94,128.60 and 37,583.87

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Solution

The fourth proportional to 68,211.80, 94,128.60 and 37,583.87 is: 51,863.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,211.80 : 94,128.60 = 37,583.87 : x
  2. Step 2: Convert to fraction form
    68,211.80/94,128.60 = 37,583.87/x
  3. Step 3: Cross multiply
    68,211.80x = 94,128.60 × 37,583.87
  4. Step 4: Simplify right side
    68,211.80x = 3,537,716,595.04
  5. Step 5: Solve for x
    x = 3,537,716,595.04/68,211.80
  6. Step 6: Final answer
    x = 51,863.71

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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.