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Finding the Fourth Proportional to 206,674.60, 310,011.90 and 185,679.40

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Solution

The fourth proportional to 206,674.60, 310,011.90 and 185,679.40 is: 278,519.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,674.60 : 310,011.90 = 185,679.40 : x
  2. Step 2: Convert to fraction form
    206,674.60/310,011.90 = 185,679.40/x
  3. Step 3: Cross multiply
    206,674.60x = 310,011.90 × 185,679.40
  4. Step 4: Simplify right side
    206,674.60x = 57,562,823,584.86
  5. Step 5: Solve for x
    x = 57,562,823,584.86/206,674.60
  6. Step 6: Final answer
    x = 278,519.10

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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.