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Finding the Fourth Proportional to 190,846.80, 286,270.20 and 50,619.60

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Solution

The fourth proportional to 190,846.80, 286,270.20 and 50,619.60 is: 75,929.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,846.80 : 286,270.20 = 50,619.60 : x
  2. Step 2: Convert to fraction form
    190,846.80/286,270.20 = 50,619.60/x
  3. Step 3: Cross multiply
    190,846.80x = 286,270.20 × 50,619.60
  4. Step 4: Simplify right side
    190,846.80x = 14,490,883,015.92
  5. Step 5: Solve for x
    x = 14,490,883,015.92/190,846.80
  6. Step 6: Final answer
    x = 75,929.40

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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.