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Finding the Fourth Proportional to 105,019.44, 144,844.92 and 67,297.20

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Solution

The fourth proportional to 105,019.44, 144,844.92 and 67,297.20 is: 92,817.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,019.44 : 144,844.92 = 67,297.20 : x
  2. Step 2: Convert to fraction form
    105,019.44/144,844.92 = 67,297.20/x
  3. Step 3: Cross multiply
    105,019.44x = 144,844.92 × 67,297.20
  4. Step 4: Simplify right side
    105,019.44x = 9,747,657,550.22
  5. Step 5: Solve for x
    x = 9,747,657,550.22/105,019.44
  6. Step 6: Final answer
    x = 92,817.65

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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.