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Finding the Fourth Proportional to 206,687.30, 310,042.52 and 64,552.21

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Solution

The fourth proportional to 206,687.30, 310,042.52 and 64,552.21 is: 96,831.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,687.30 : 310,042.52 = 64,552.21 : x
  2. Step 2: Convert to fraction form
    206,687.30/310,042.52 = 64,552.21/x
  3. Step 3: Cross multiply
    206,687.30x = 310,042.52 × 64,552.21
  4. Step 4: Simplify right side
    206,687.30x = 20,013,929,004.17
  5. Step 5: Solve for x
    x = 20,013,929,004.17/206,687.30
  6. Step 6: Final answer
    x = 96,831.93

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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.