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Finding the Fourth Proportional to 206,300.17, 284,695.25 and 115,659.96

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Solution

The fourth proportional to 206,300.17, 284,695.25 and 115,659.96 is: 159,611.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,300.17 : 284,695.25 = 115,659.96 : x
  2. Step 2: Convert to fraction form
    206,300.17/284,695.25 = 115,659.96/x
  3. Step 3: Cross multiply
    206,300.17x = 284,695.25 × 115,659.96
  4. Step 4: Simplify right side
    206,300.17x = 32,927,841,227.19
  5. Step 5: Solve for x
    x = 32,927,841,227.19/206,300.17
  6. Step 6: Final answer
    x = 159,611.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.