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Finding the Fourth Proportional to 293,618.91, 405,174.91 and 172,736.84

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Solution

The fourth proportional to 293,618.91, 405,174.91 and 172,736.84 is: 238,365.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,618.91 : 405,174.91 = 172,736.84 : x
  2. Step 2: Convert to fraction form
    293,618.91/405,174.91 = 172,736.84/x
  3. Step 3: Cross multiply
    293,618.91x = 405,174.91 × 172,736.84
  4. Step 4: Simplify right side
    293,618.91x = 69,988,633,600.68
  5. Step 5: Solve for x
    x = 69,988,633,600.68/293,618.91
  6. Step 6: Final answer
    x = 238,365.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.