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Finding the Fourth Proportional to 206,055.96, 308,970.37 and 63,861.81

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Solution

The fourth proportional to 206,055.96, 308,970.37 and 63,861.81 is: 95,757.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,055.96 : 308,970.37 = 63,861.81 : x
  2. Step 2: Convert to fraction form
    206,055.96/308,970.37 = 63,861.81/x
  3. Step 3: Cross multiply
    206,055.96x = 308,970.37 × 63,861.81
  4. Step 4: Simplify right side
    206,055.96x = 19,731,407,064.57
  5. Step 5: Solve for x
    x = 19,731,407,064.57/206,055.96
  6. Step 6: Final answer
    x = 95,757.52

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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.