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Finding the Fourth Proportional to 172,896.59, 257,992.64 and 136,950.59

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Solution

The fourth proportional to 172,896.59, 257,992.64 and 136,950.59 is: 204,354.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,896.59 : 257,992.64 = 136,950.59 : x
  2. Step 2: Convert to fraction form
    172,896.59/257,992.64 = 136,950.59/x
  3. Step 3: Cross multiply
    172,896.59x = 257,992.64 × 136,950.59
  4. Step 4: Simplify right side
    172,896.59x = 35,332,244,263.66
  5. Step 5: Solve for x
    x = 35,332,244,263.66/172,896.59
  6. Step 6: Final answer
    x = 204,354.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.