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Finding the Fourth Proportional to 255,374.71, 352,413.79 and 140,651.17

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Solution

The fourth proportional to 255,374.71, 352,413.79 and 140,651.17 is: 194,096.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,374.71 : 352,413.79 = 140,651.17 : x
  2. Step 2: Convert to fraction form
    255,374.71/352,413.79 = 140,651.17/x
  3. Step 3: Cross multiply
    255,374.71x = 352,413.79 × 140,651.17
  4. Step 4: Simplify right side
    255,374.71x = 49,567,410,654.97
  5. Step 5: Solve for x
    x = 49,567,410,654.97/255,374.71
  6. Step 6: Final answer
    x = 194,096.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.