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Finding the Fourth Proportional to 190,674.75, 286,012.13 and 66,015.75

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Solution

The fourth proportional to 190,674.75, 286,012.13 and 66,015.75 is: 99,023.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,674.75 : 286,012.13 = 66,015.75 : x
  2. Step 2: Convert to fraction form
    190,674.75/286,012.13 = 66,015.75/x
  3. Step 3: Cross multiply
    190,674.75x = 286,012.13 × 66,015.75
  4. Step 4: Simplify right side
    190,674.75x = 18,881,304,940.97
  5. Step 5: Solve for x
    x = 18,881,304,940.97/190,674.75
  6. Step 6: Final answer
    x = 99,023.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.