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Finding the Fourth Proportional to 57,968.81, 86,804.44 and 40,174.12

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Solution

The fourth proportional to 57,968.81, 86,804.44 and 40,174.12 is: 60,158.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,968.81 : 86,804.44 = 40,174.12 : x
  2. Step 2: Convert to fraction form
    57,968.81/86,804.44 = 40,174.12/x
  3. Step 3: Cross multiply
    57,968.81x = 86,804.44 × 40,174.12
  4. Step 4: Simplify right side
    57,968.81x = 3,487,291,671.65
  5. Step 5: Solve for x
    x = 3,487,291,671.65/57,968.81
  6. Step 6: Final answer
    x = 60,158.07

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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.