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Finding the Fourth Proportional to 92,954.26, 139,529.67 and 57,918.52

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Solution

The fourth proportional to 92,954.26, 139,529.67 and 57,918.52 is: 86,939.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,954.26 : 139,529.67 = 57,918.52 : x
  2. Step 2: Convert to fraction form
    92,954.26/139,529.67 = 57,918.52/x
  3. Step 3: Cross multiply
    92,954.26x = 139,529.67 × 57,918.52
  4. Step 4: Simplify right side
    92,954.26x = 8,081,351,982.49
  5. Step 5: Solve for x
    x = 8,081,351,982.49/92,954.26
  6. Step 6: Final answer
    x = 86,939.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.