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Finding the Fourth Proportional to 403,754.60, 605,413.20 and 166,829.60

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Solution

The fourth proportional to 403,754.60, 605,413.20 and 166,829.60 is: 250,154.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,754.60 : 605,413.20 = 166,829.60 : x
  2. Step 2: Convert to fraction form
    403,754.60/605,413.20 = 166,829.60/x
  3. Step 3: Cross multiply
    403,754.60x = 605,413.20 × 166,829.60
  4. Step 4: Simplify right side
    403,754.60x = 101,000,841,990.72
  5. Step 5: Solve for x
    x = 101,000,841,990.72/403,754.60
  6. Step 6: Final answer
    x = 250,154.03

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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.