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Finding the Fourth Proportional to 206,708.76, 285,254.46 and 116,065.44

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Solution

The fourth proportional to 206,708.76, 285,254.46 and 116,065.44 is: 160,168.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,708.76 : 285,254.46 = 116,065.44 : x
  2. Step 2: Convert to fraction form
    206,708.76/285,254.46 = 116,065.44/x
  3. Step 3: Cross multiply
    206,708.76x = 285,254.46 × 116,065.44
  4. Step 4: Simplify right side
    206,708.76x = 33,108,184,411.86
  5. Step 5: Solve for x
    x = 33,108,184,411.86/206,708.76
  6. Step 6: Final answer
    x = 160,168.27

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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.