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Finding the Fourth Proportional to 91,705.60, 126,608.92 and 59,927.68

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Solution

The fourth proportional to 91,705.60, 126,608.92 and 59,927.68 is: 82,736.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,705.60 : 126,608.92 = 59,927.68 : x
  2. Step 2: Convert to fraction form
    91,705.60/126,608.92 = 59,927.68/x
  3. Step 3: Cross multiply
    91,705.60x = 126,608.92 × 59,927.68
  4. Step 4: Simplify right side
    91,705.60x = 7,587,378,842.91
  5. Step 5: Solve for x
    x = 7,587,378,842.91/91,705.60
  6. Step 6: Final answer
    x = 82,736.27

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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.