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Finding the Fourth Proportional to 222,912.50, 334,388.19 and 56,700.50

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Solution

The fourth proportional to 222,912.50, 334,388.19 and 56,700.50 is: 85,055.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,912.50 : 334,388.19 = 56,700.50 : x
  2. Step 2: Convert to fraction form
    222,912.50/334,388.19 = 56,700.50/x
  3. Step 3: Cross multiply
    222,912.50x = 334,388.19 × 56,700.50
  4. Step 4: Simplify right side
    222,912.50x = 18,959,977,567.10
  5. Step 5: Solve for x
    x = 18,959,977,567.10/222,912.50
  6. Step 6: Final answer
    x = 85,055.69

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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.