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Finding the Fourth Proportional to 101,605.99, 140,214.67 and 55,665.27

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Solution

The fourth proportional to 101,605.99, 140,214.67 and 55,665.27 is: 76,817.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,605.99 : 140,214.67 = 55,665.27 : x
  2. Step 2: Convert to fraction form
    101,605.99/140,214.67 = 55,665.27/x
  3. Step 3: Cross multiply
    101,605.99x = 140,214.67 × 55,665.27
  4. Step 4: Simplify right side
    101,605.99x = 7,805,087,324.35
  5. Step 5: Solve for x
    x = 7,805,087,324.35/101,605.99
  6. Step 6: Final answer
    x = 76,817.20

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1.5x scale

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.