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Finding the Fourth Proportional to 57,697.92, 86,395.88 and 46,393.20

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Solution

The fourth proportional to 57,697.92, 86,395.88 and 46,393.20 is: 69,468.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,697.92 : 86,395.88 = 46,393.20 : x
  2. Step 2: Convert to fraction form
    57,697.92/86,395.88 = 46,393.20/x
  3. Step 3: Cross multiply
    57,697.92x = 86,395.88 × 46,393.20
  4. Step 4: Simplify right side
    57,697.92x = 4,008,181,340.02
  5. Step 5: Solve for x
    x = 4,008,181,340.02/57,697.92
  6. Step 6: Final answer
    x = 69,468.39

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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.