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Finding the Fourth Proportional to 571,716.78, 857,699.01 and 172,324.14

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Solution

The fourth proportional to 571,716.78, 857,699.01 and 172,324.14 is: 258,523.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,716.78 : 857,699.01 = 172,324.14 : x
  2. Step 2: Convert to fraction form
    571,716.78/857,699.01 = 172,324.14/x
  3. Step 3: Cross multiply
    571,716.78x = 857,699.01 × 172,324.14
  4. Step 4: Simplify right side
    571,716.78x = 147,802,244,277.10
  5. Step 5: Solve for x
    x = 147,802,244,277.10/571,716.78
  6. Step 6: Final answer
    x = 258,523.54

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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.