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Finding the Fourth Proportional to 206,598.20, 309,897.30 and 171,606.20

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Solution

The fourth proportional to 206,598.20, 309,897.30 and 171,606.20 is: 257,409.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,598.20 : 309,897.30 = 171,606.20 : x
  2. Step 2: Convert to fraction form
    206,598.20/309,897.30 = 171,606.20/x
  3. Step 3: Cross multiply
    206,598.20x = 309,897.30 × 171,606.20
  4. Step 4: Simplify right side
    206,598.20x = 53,180,298,043.26
  5. Step 5: Solve for x
    x = 53,180,298,043.26/206,598.20
  6. Step 6: Final answer
    x = 257,409.30

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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.