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Finding the Fourth Proportional to 171,949.80, 257,924.70 and 169,325.40

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Solution

The fourth proportional to 171,949.80, 257,924.70 and 169,325.40 is: 253,988.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,949.80 : 257,924.70 = 169,325.40 : x
  2. Step 2: Convert to fraction form
    171,949.80/257,924.70 = 169,325.40/x
  3. Step 3: Cross multiply
    171,949.80x = 257,924.70 × 169,325.40
  4. Step 4: Simplify right side
    171,949.80x = 43,673,202,997.38
  5. Step 5: Solve for x
    x = 43,673,202,997.38/171,949.80
  6. Step 6: Final answer
    x = 253,988.10

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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.