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Finding the Fourth Proportional to 190,336.56, 262,653.48 and 105,448.56

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Solution

The fourth proportional to 190,336.56, 262,653.48 and 105,448.56 is: 145,512.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,336.56 : 262,653.48 = 105,448.56 : x
  2. Step 2: Convert to fraction form
    190,336.56/262,653.48 = 105,448.56/x
  3. Step 3: Cross multiply
    190,336.56x = 262,653.48 × 105,448.56
  4. Step 4: Simplify right side
    190,336.56x = 27,696,431,244.99
  5. Step 5: Solve for x
    x = 27,696,431,244.99/190,336.56
  6. Step 6: Final answer
    x = 145,512.93

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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.