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Finding the Fourth Proportional to 115,976.80, 162,017.60 and 115,976.80

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Solution

The fourth proportional to 115,976.80, 162,017.60 and 115,976.80 is: 162,017.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,976.80 : 162,017.60 = 115,976.80 : x
  2. Step 2: Convert to fraction form
    115,976.80/162,017.60 = 115,976.80/x
  3. Step 3: Cross multiply
    115,976.80x = 162,017.60 × 115,976.80
  4. Step 4: Simplify right side
    115,976.80x = 18,790,282,791.68
  5. Step 5: Solve for x
    x = 18,790,282,791.68/115,976.80
  6. Step 6: Final answer
    x = 162,017.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.