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Finding the Fourth Proportional to 222,762.10, 334,143.15 and 143,965.30

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Solution

The fourth proportional to 222,762.10, 334,143.15 and 143,965.30 is: 215,947.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,762.10 : 334,143.15 = 143,965.30 : x
  2. Step 2: Convert to fraction form
    222,762.10/334,143.15 = 143,965.30/x
  3. Step 3: Cross multiply
    222,762.10x = 334,143.15 × 143,965.30
  4. Step 4: Simplify right side
    222,762.10x = 48,105,018,832.70
  5. Step 5: Solve for x
    x = 48,105,018,832.70/222,762.10
  6. Step 6: Final answer
    x = 215,947.95

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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.