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Finding the Fourth Proportional to 203,186.74, 280,413.50 and 112,551.14

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Solution

The fourth proportional to 203,186.74, 280,413.50 and 112,551.14 is: 155,329.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,186.74 : 280,413.50 = 112,551.14 : x
  2. Step 2: Convert to fraction form
    203,186.74/280,413.50 = 112,551.14/x
  3. Step 3: Cross multiply
    203,186.74x = 280,413.50 × 112,551.14
  4. Step 4: Simplify right side
    203,186.74x = 31,560,859,096.39
  5. Step 5: Solve for x
    x = 31,560,859,096.39/203,186.74
  6. Step 6: Final answer
    x = 155,329.32

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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.