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Finding the Fourth Proportional to 505,076.31, 757,081.89 and 168,026.94

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Solution

The fourth proportional to 505,076.31, 757,081.89 and 168,026.94 is: 251,863.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,076.31 : 757,081.89 = 168,026.94 : x
  2. Step 2: Convert to fraction form
    505,076.31/757,081.89 = 168,026.94/x
  3. Step 3: Cross multiply
    505,076.31x = 757,081.89 × 168,026.94
  4. Step 4: Simplify right side
    505,076.31x = 127,210,153,306.12
  5. Step 5: Solve for x
    x = 127,210,153,306.12/505,076.31
  6. Step 6: Final answer
    x = 251,863.23

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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.