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Finding the Fourth Proportional to 101,796.40, 140,504.79 and 65,522.44

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Solution

The fourth proportional to 101,796.40, 140,504.79 and 65,522.44 is: 90,437.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,796.40 : 140,504.79 = 65,522.44 : x
  2. Step 2: Convert to fraction form
    101,796.40/140,504.79 = 65,522.44/x
  3. Step 3: Cross multiply
    101,796.40x = 140,504.79 × 65,522.44
  4. Step 4: Simplify right side
    101,796.40x = 9,206,216,672.49
  5. Step 5: Solve for x
    x = 9,206,216,672.49/101,796.40
  6. Step 6: Final answer
    x = 90,437.55

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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.