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Finding the Fourth Proportional to 91,942.65, 126,893.64 and 51,659.52

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Solution

The fourth proportional to 91,942.65, 126,893.64 and 51,659.52 is: 71,297.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,942.65 : 126,893.64 = 51,659.52 : x
  2. Step 2: Convert to fraction form
    91,942.65/126,893.64 = 51,659.52/x
  3. Step 3: Cross multiply
    91,942.65x = 126,893.64 × 51,659.52
  4. Step 4: Simplify right side
    91,942.65x = 6,555,264,533.45
  5. Step 5: Solve for x
    x = 6,555,264,533.45/91,942.65
  6. Step 6: Final answer
    x = 71,297.32

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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.