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Finding the Fourth Proportional to 57,717.90, 86,576.90 and 46,104.93

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Solution

The fourth proportional to 57,717.90, 86,576.90 and 46,104.93 is: 69,157.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,717.90 : 86,576.90 = 46,104.93 : x
  2. Step 2: Convert to fraction form
    57,717.90/86,576.90 = 46,104.93/x
  3. Step 3: Cross multiply
    57,717.90x = 86,576.90 × 46,104.93
  4. Step 4: Simplify right side
    57,717.90x = 3,991,621,683.59
  5. Step 5: Solve for x
    x = 3,991,621,683.59/57,717.90
  6. Step 6: Final answer
    x = 69,157.43

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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.