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Finding the Fourth Proportional to 171,393.40, 257,090.10 and 167,894.20

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Solution

The fourth proportional to 171,393.40, 257,090.10 and 167,894.20 is: 251,841.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,393.40 : 257,090.10 = 167,894.20 : x
  2. Step 2: Convert to fraction form
    171,393.40/257,090.10 = 167,894.20/x
  3. Step 3: Cross multiply
    171,393.40x = 257,090.10 × 167,894.20
  4. Step 4: Simplify right side
    171,393.40x = 43,163,936,667.42
  5. Step 5: Solve for x
    x = 43,163,936,667.42/171,393.40
  6. Step 6: Final answer
    x = 251,841.30

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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.