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Finding the Fourth Proportional to 383,561.77, 575,650.82 and 173,218.09

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Solution

The fourth proportional to 383,561.77, 575,650.82 and 173,218.09 is: 259,966.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,561.77 : 575,650.82 = 173,218.09 : x
  2. Step 2: Convert to fraction form
    383,561.77/575,650.82 = 173,218.09/x
  3. Step 3: Cross multiply
    383,561.77x = 575,650.82 × 173,218.09
  4. Step 4: Simplify right side
    383,561.77x = 99,713,135,547.33
  5. Step 5: Solve for x
    x = 99,713,135,547.33/383,561.77
  6. Step 6: Final answer
    x = 259,966.30

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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.