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Finding the Fourth Proportional to 170,603.06, 255,937.40 and 65,413.82

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Solution

The fourth proportional to 170,603.06, 255,937.40 and 65,413.82 is: 98,133.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,603.06 : 255,937.40 = 65,413.82 : x
  2. Step 2: Convert to fraction form
    170,603.06/255,937.40 = 65,413.82/x
  3. Step 3: Cross multiply
    170,603.06x = 255,937.40 × 65,413.82
  4. Step 4: Simplify right side
    170,603.06x = 16,741,843,014.87
  5. Step 5: Solve for x
    x = 16,741,843,014.87/170,603.06
  6. Step 6: Final answer
    x = 98,133.31

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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.