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Finding the Fourth Proportional to 206,132.70, 308,615.85 and 206,132.70

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Solution

The fourth proportional to 206,132.70, 308,615.85 and 206,132.70 is: 308,615.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,132.70 : 308,615.85 = 206,132.70 : x
  2. Step 2: Convert to fraction form
    206,132.70/308,615.85 = 206,132.70/x
  3. Step 3: Cross multiply
    206,132.70x = 308,615.85 × 206,132.70
  4. Step 4: Simplify right side
    206,132.70x = 63,615,818,423.30
  5. Step 5: Solve for x
    x = 63,615,818,423.30/206,132.70
  6. Step 6: Final answer
    x = 308,615.85

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1.5x scale

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.