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Finding the Fourth Proportional to 92,791.68, 128,053.44 and 50,350.56

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Solution

The fourth proportional to 92,791.68, 128,053.44 and 50,350.56 is: 69,484.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,791.68 : 128,053.44 = 50,350.56 : x
  2. Step 2: Convert to fraction form
    92,791.68/128,053.44 = 50,350.56/x
  3. Step 3: Cross multiply
    92,791.68x = 128,053.44 × 50,350.56
  4. Step 4: Simplify right side
    92,791.68x = 6,447,562,413.93
  5. Step 5: Solve for x
    x = 6,447,562,413.93/92,791.68
  6. Step 6: Final answer
    x = 69,484.27

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1.5x scale

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.