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Finding the Fourth Proportional to 171,812.88, 257,716.14 and 70,589.46

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Solution

The fourth proportional to 171,812.88, 257,716.14 and 70,589.46 is: 105,882.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,812.88 : 257,716.14 = 70,589.46 : x
  2. Step 2: Convert to fraction form
    171,812.88/257,716.14 = 70,589.46/x
  3. Step 3: Cross multiply
    171,812.88x = 257,716.14 × 70,589.46
  4. Step 4: Simplify right side
    171,812.88x = 18,192,043,155.88
  5. Step 5: Solve for x
    x = 18,192,043,155.88/171,812.88
  6. Step 6: Final answer
    x = 105,882.88

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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.