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Finding the Fourth Proportional to 172,296.96, 257,892.12 and 92,134.26

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Solution

The fourth proportional to 172,296.96, 257,892.12 and 92,134.26 is: 137,905.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,296.96 : 257,892.12 = 92,134.26 : x
  2. Step 2: Convert to fraction form
    172,296.96/257,892.12 = 92,134.26/x
  3. Step 3: Cross multiply
    172,296.96x = 257,892.12 × 92,134.26
  4. Step 4: Simplify right side
    172,296.96x = 23,760,699,636.03
  5. Step 5: Solve for x
    x = 23,760,699,636.03/172,296.96
  6. Step 6: Final answer
    x = 137,905.51

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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.