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Finding the Fourth Proportional to 573.11, 859.67 and 140.26

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Solution

The fourth proportional to 573.11, 859.67 and 140.26 is: 210.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    573.11 : 859.67 = 140.26 : x
  2. Step 2: Convert to fraction form
    573.11/859.67 = 140.26/x
  3. Step 3: Cross multiply
    573.11x = 859.67 × 140.26
  4. Step 4: Simplify right side
    573.11x = 120,577.31
  5. Step 5: Solve for x
    x = 120,577.31/573.11
  6. Step 6: Final answer
    x = 210.39

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