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Finding the Fourth Proportional to 189,317.44, 283,948.62 and 56,172.88

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Solution

The fourth proportional to 189,317.44, 283,948.62 and 56,172.88 is: 84,251.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,317.44 : 283,948.62 = 56,172.88 : x
  2. Step 2: Convert to fraction form
    189,317.44/283,948.62 = 56,172.88/x
  3. Step 3: Cross multiply
    189,317.44x = 283,948.62 × 56,172.88
  4. Step 4: Simplify right side
    189,317.44x = 15,950,211,757.43
  5. Step 5: Solve for x
    x = 15,950,211,757.43/189,317.44
  6. Step 6: Final answer
    x = 84,251.15

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Why These Related Problems?

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