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Finding the Fourth Proportional to 184,413.80, 275,964.60 and 127,989.20

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Solution

The fourth proportional to 184,413.80, 275,964.60 and 127,989.20 is: 191,528.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    184,413.80 : 275,964.60 = 127,989.20 : x
  2. Step 2: Convert to fraction form
    184,413.80/275,964.60 = 127,989.20/x
  3. Step 3: Cross multiply
    184,413.80x = 275,964.60 × 127,989.20
  4. Step 4: Simplify right side
    184,413.80x = 35,320,488,382.32
  5. Step 5: Solve for x
    x = 35,320,488,382.32/184,413.80
  6. Step 6: Final answer
    x = 191,528.45

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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.