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Finding the Fourth Proportional to 368,928.99, 553,413.42 and 116,229.33

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Solution

The fourth proportional to 368,928.99, 553,413.42 and 116,229.33 is: 174,350.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,928.99 : 553,413.42 = 116,229.33 : x
  2. Step 2: Convert to fraction form
    368,928.99/553,413.42 = 116,229.33/x
  3. Step 3: Cross multiply
    368,928.99x = 553,413.42 × 116,229.33
  4. Step 4: Simplify right side
    368,928.99x = 64,322,871,019.61
  5. Step 5: Solve for x
    x = 64,322,871,019.61/368,928.99
  6. Step 6: Final answer
    x = 174,350.28

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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.