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Finding the Fourth Proportional to 374,892.75, 517,588.92 and 231,734.16

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Solution

The fourth proportional to 374,892.75, 517,588.92 and 231,734.16 is: 319,939.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,892.75 : 517,588.92 = 231,734.16 : x
  2. Step 2: Convert to fraction form
    374,892.75/517,588.92 = 231,734.16/x
  3. Step 3: Cross multiply
    374,892.75x = 517,588.92 × 231,734.16
  4. Step 4: Simplify right side
    374,892.75x = 119,943,033,601.51
  5. Step 5: Solve for x
    x = 119,943,033,601.51/374,892.75
  6. Step 6: Final answer
    x = 319,939.59

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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.