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Finding the Fourth Proportional to 188,296.45, 259,848.81 and 103,413.52

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Solution

The fourth proportional to 188,296.45, 259,848.81 and 103,413.52 is: 142,710.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,296.45 : 259,848.81 = 103,413.52 : x
  2. Step 2: Convert to fraction form
    188,296.45/259,848.81 = 103,413.52/x
  3. Step 3: Cross multiply
    188,296.45x = 259,848.81 × 103,413.52
  4. Step 4: Simplify right side
    188,296.45x = 26,871,880,109.91
  5. Step 5: Solve for x
    x = 26,871,880,109.91/188,296.45
  6. Step 6: Final answer
    x = 142,710.50

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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.