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Finding the Fourth Proportional to 383,799.74, 575,453.25 and 159,315.12

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Solution

The fourth proportional to 383,799.74, 575,453.25 and 159,315.12 is: 238,870.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,799.74 : 575,453.25 = 159,315.12 : x
  2. Step 2: Convert to fraction form
    383,799.74/575,453.25 = 159,315.12/x
  3. Step 3: Cross multiply
    383,799.74x = 575,453.25 × 159,315.12
  4. Step 4: Simplify right side
    383,799.74x = 91,678,403,578.14
  5. Step 5: Solve for x
    x = 91,678,403,578.14/383,799.74
  6. Step 6: Final answer
    x = 238,870.42

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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.