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Finding the Fourth Proportional to 66,889.94, 92,239.21 and 46,739.47

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Solution

The fourth proportional to 66,889.94, 92,239.21 and 46,739.47 is: 64,452.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,889.94 : 92,239.21 = 46,739.47 : x
  2. Step 2: Convert to fraction form
    66,889.94/92,239.21 = 46,739.47/x
  3. Step 3: Cross multiply
    66,889.94x = 92,239.21 × 46,739.47
  4. Step 4: Simplify right side
    66,889.94x = 4,311,211,788.62
  5. Step 5: Solve for x
    x = 4,311,211,788.62/66,889.94
  6. Step 6: Final answer
    x = 64,452.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.