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Finding the Fourth Proportional to 84,626.56, 126,690.56 and 62,538.56

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Solution

The fourth proportional to 84,626.56, 126,690.56 and 62,538.56 is: 93,623.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,626.56 : 126,690.56 = 62,538.56 : x
  2. Step 2: Convert to fraction form
    84,626.56/126,690.56 = 62,538.56/x
  3. Step 3: Cross multiply
    84,626.56x = 126,690.56 × 62,538.56
  4. Step 4: Simplify right side
    84,626.56x = 7,923,045,187.99
  5. Step 5: Solve for x
    x = 7,923,045,187.99/84,626.56
  6. Step 6: Final answer
    x = 93,623.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.