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Finding the Fourth Proportional to 571,896.57, 857,851.01 and 172,540.82

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Solution

The fourth proportional to 571,896.57, 857,851.01 and 172,540.82 is: 258,813.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,896.57 : 857,851.01 = 172,540.82 : x
  2. Step 2: Convert to fraction form
    571,896.57/857,851.01 = 172,540.82/x
  3. Step 3: Cross multiply
    571,896.57x = 857,851.01 × 172,540.82
  4. Step 4: Simplify right side
    571,896.57x = 148,014,311,551.27
  5. Step 5: Solve for x
    x = 148,014,311,551.27/571,896.57
  6. Step 6: Final answer
    x = 258,813.08

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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.