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Finding the Fourth Proportional to 104,184.44, 143,745.35 and 65,426.44

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Solution

The fourth proportional to 104,184.44, 143,745.35 and 65,426.44 is: 90,270.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,184.44 : 143,745.35 = 65,426.44 : x
  2. Step 2: Convert to fraction form
    104,184.44/143,745.35 = 65,426.44/x
  3. Step 3: Cross multiply
    104,184.44x = 143,745.35 × 65,426.44
  4. Step 4: Simplify right side
    104,184.44x = 9,404,746,517.05
  5. Step 5: Solve for x
    x = 9,404,746,517.05/104,184.44
  6. Step 6: Final answer
    x = 90,270.16

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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.