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Finding the Fourth Proportional to 171,611.97, 257,455.13 and 70,410.26

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Solution

The fourth proportional to 171,611.97, 257,455.13 and 70,410.26 is: 105,630.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,611.97 : 257,455.13 = 70,410.26 : x
  2. Step 2: Convert to fraction form
    171,611.97/257,455.13 = 70,410.26/x
  3. Step 3: Cross multiply
    171,611.97x = 257,455.13 × 70,410.26
  4. Step 4: Simplify right side
    171,611.97x = 18,127,481,002.31
  5. Step 5: Solve for x
    x = 18,127,481,002.31/171,611.97
  6. Step 6: Final answer
    x = 105,630.63

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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.