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Finding the Fourth Proportional to 91,953.63, 126,899.73 and 51,667.26

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Solution

The fourth proportional to 91,953.63, 126,899.73 and 51,667.26 is: 71,302.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,953.63 : 126,899.73 = 51,667.26 : x
  2. Step 2: Convert to fraction form
    91,953.63/126,899.73 = 51,667.26/x
  3. Step 3: Cross multiply
    91,953.63x = 126,899.73 × 51,667.26
  4. Step 4: Simplify right side
    91,953.63x = 6,556,561,343.84
  5. Step 5: Solve for x
    x = 6,556,561,343.84/91,953.63
  6. Step 6: Final answer
    x = 71,302.91

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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.