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Finding the Fourth Proportional to 188,933.99, 260,752.73 and 108,359.78

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Solution

The fourth proportional to 188,933.99, 260,752.73 and 108,359.78 is: 149,550.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,933.99 : 260,752.73 = 108,359.78 : x
  2. Step 2: Convert to fraction form
    188,933.99/260,752.73 = 108,359.78/x
  3. Step 3: Cross multiply
    188,933.99x = 260,752.73 × 108,359.78
  4. Step 4: Simplify right side
    188,933.99x = 28,255,106,611.64
  5. Step 5: Solve for x
    x = 28,255,106,611.64/188,933.99
  6. Step 6: Final answer
    x = 149,550.15

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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.