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Finding the Fourth Proportional to 188,326.67, 259,850.36 and 111,871.54

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Solution

The fourth proportional to 188,326.67, 259,850.36 and 111,871.54 is: 154,358.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,326.67 : 259,850.36 = 111,871.54 : x
  2. Step 2: Convert to fraction form
    188,326.67/259,850.36 = 111,871.54/x
  3. Step 3: Cross multiply
    188,326.67x = 259,850.36 × 111,871.54
  4. Step 4: Simplify right side
    188,326.67x = 29,069,860,547.25
  5. Step 5: Solve for x
    x = 29,069,860,547.25/188,326.67
  6. Step 6: Final answer
    x = 154,358.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.