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Finding the Fourth Proportional to 418,248.75, 627,020.37 and 181,413.03

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Solution

The fourth proportional to 418,248.75, 627,020.37 and 181,413.03 is: 271,966.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,248.75 : 627,020.37 = 181,413.03 : x
  2. Step 2: Convert to fraction form
    418,248.75/627,020.37 = 181,413.03/x
  3. Step 3: Cross multiply
    418,248.75x = 627,020.37 × 181,413.03
  4. Step 4: Simplify right side
    418,248.75x = 113,749,665,193.42
  5. Step 5: Solve for x
    x = 113,749,665,193.42/418,248.75
  6. Step 6: Final answer
    x = 271,966.54

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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.