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Finding the Fourth Proportional to 190,507.56, 285,739.47 and 50,277.12

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Solution

The fourth proportional to 190,507.56, 285,739.47 and 50,277.12 is: 75,409.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,507.56 : 285,739.47 = 50,277.12 : x
  2. Step 2: Convert to fraction form
    190,507.56/285,739.47 = 50,277.12/x
  3. Step 3: Cross multiply
    190,507.56x = 285,739.47 × 50,277.12
  4. Step 4: Simplify right side
    190,507.56x = 14,366,157,621.93
  5. Step 5: Solve for x
    x = 14,366,157,621.93/190,507.56
  6. Step 6: Final answer
    x = 75,409.91

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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.