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Finding the Fourth Proportional to 206,274.54, 309,412.08 and 56,516.10

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Solution

The fourth proportional to 206,274.54, 309,412.08 and 56,516.10 is: 84,774.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,274.54 : 309,412.08 = 56,516.10 : x
  2. Step 2: Convert to fraction form
    206,274.54/309,412.08 = 56,516.10/x
  3. Step 3: Cross multiply
    206,274.54x = 309,412.08 × 56,516.10
  4. Step 4: Simplify right side
    206,274.54x = 17,486,764,054.49
  5. Step 5: Solve for x
    x = 17,486,764,054.49/206,274.54
  6. Step 6: Final answer
    x = 84,774.22

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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.