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Finding the Fourth Proportional to 91,713, 126,563.94 and 54,010.44

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Solution

The fourth proportional to 91,713, 126,563.94 and 54,010.44 is: 74,534.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,713 : 126,563.94 = 54,010.44 : x
  2. Step 2: Convert to fraction form
    91,713/126,563.94 = 54,010.44/x
  3. Step 3: Cross multiply
    91,713x = 126,563.94 × 54,010.44
  4. Step 4: Simplify right side
    91,713x = 6,835,774,087.53
  5. Step 5: Solve for x
    x = 6,835,774,087.53/91,713
  6. Step 6: Final answer
    x = 74,534.41

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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.