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Finding the Fourth Proportional to 91,796.97, 126,692.42 and 51,513.11

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Solution

The fourth proportional to 91,796.97, 126,692.42 and 51,513.11 is: 71,095.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,796.97 : 126,692.42 = 51,513.11 : x
  2. Step 2: Convert to fraction form
    91,796.97/126,692.42 = 51,513.11/x
  3. Step 3: Cross multiply
    91,796.97x = 126,692.42 × 51,513.11
  4. Step 4: Simplify right side
    91,796.97x = 6,526,319,934.16
  5. Step 5: Solve for x
    x = 6,526,319,934.16/91,796.97
  6. Step 6: Final answer
    x = 71,095.16

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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.