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Finding the Fourth Proportional to 188,653.36, 260,337.36 and 103,768.60

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Solution

The fourth proportional to 188,653.36, 260,337.36 and 103,768.60 is: 143,198.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,653.36 : 260,337.36 = 103,768.60 : x
  2. Step 2: Convert to fraction form
    188,653.36/260,337.36 = 103,768.60/x
  3. Step 3: Cross multiply
    188,653.36x = 260,337.36 × 103,768.60
  4. Step 4: Simplify right side
    188,653.36x = 27,014,843,374.90
  5. Step 5: Solve for x
    x = 27,014,843,374.90/188,653.36
  6. Step 6: Final answer
    x = 143,198.32

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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.