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Finding the Fourth Proportional to 62,141.72, 92,743.11 and 57,928.10

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Solution

The fourth proportional to 62,141.72, 92,743.11 and 57,928.10 is: 86,454.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,141.72 : 92,743.11 = 57,928.10 : x
  2. Step 2: Convert to fraction form
    62,141.72/92,743.11 = 57,928.10/x
  3. Step 3: Cross multiply
    62,141.72x = 92,743.11 × 57,928.10
  4. Step 4: Simplify right side
    62,141.72x = 5,372,431,686.68
  5. Step 5: Solve for x
    x = 5,372,431,686.68/62,141.72
  6. Step 6: Final answer
    x = 86,454.51

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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.