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Finding the Fourth Proportional to 67,413.78, 101,041.93 and 50,720.17

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Solution

The fourth proportional to 67,413.78, 101,041.93 and 50,720.17 is: 76,021.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,413.78 : 101,041.93 = 50,720.17 : x
  2. Step 2: Convert to fraction form
    67,413.78/101,041.93 = 50,720.17/x
  3. Step 3: Cross multiply
    67,413.78x = 101,041.93 × 50,720.17
  4. Step 4: Simplify right side
    67,413.78x = 5,124,863,866.73
  5. Step 5: Solve for x
    x = 5,124,863,866.73/67,413.78
  6. Step 6: Final answer
    x = 76,021.01

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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.