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Finding the Fourth Proportional to 190,797.20, 285,965.40 and 97,254.80

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Solution

The fourth proportional to 190,797.20, 285,965.40 and 97,254.80 is: 145,764.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,797.20 : 285,965.40 = 97,254.80 : x
  2. Step 2: Convert to fraction form
    190,797.20/285,965.40 = 97,254.80/x
  3. Step 3: Cross multiply
    190,797.20x = 285,965.40 × 97,254.80
  4. Step 4: Simplify right side
    190,797.20x = 27,811,507,783.92
  5. Step 5: Solve for x
    x = 27,811,507,783.92/190,797.20
  6. Step 6: Final answer
    x = 145,764.76

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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.