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Finding the Fourth Proportional to 239,879.12, 359,703.66 and 113,413.82

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Solution

The fourth proportional to 239,879.12, 359,703.66 and 113,413.82 is: 170,066.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,879.12 : 359,703.66 = 113,413.82 : x
  2. Step 2: Convert to fraction form
    239,879.12/359,703.66 = 113,413.82/x
  3. Step 3: Cross multiply
    239,879.12x = 359,703.66 × 113,413.82
  4. Step 4: Simplify right side
    239,879.12x = 40,795,366,148.58
  5. Step 5: Solve for x
    x = 40,795,366,148.58/239,879.12
  6. Step 6: Final answer
    x = 170,066.35

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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.