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Finding the Fourth Proportional to 190,484.70, 262,850.31 and 105,599.94

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Solution

The fourth proportional to 190,484.70, 262,850.31 and 105,599.94 is: 145,717.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,484.70 : 262,850.31 = 105,599.94 : x
  2. Step 2: Convert to fraction form
    190,484.70/262,850.31 = 105,599.94/x
  3. Step 3: Cross multiply
    190,484.70x = 262,850.31 × 105,599.94
  4. Step 4: Simplify right side
    190,484.70x = 27,756,976,964.98
  5. Step 5: Solve for x
    x = 27,756,976,964.98/190,484.70
  6. Step 6: Final answer
    x = 145,717.62

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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.