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Finding the Fourth Proportional to 190,574.72, 285,884.64 and 50,334.56

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Solution

The fourth proportional to 190,574.72, 285,884.64 and 50,334.56 is: 75,507.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,574.72 : 285,884.64 = 50,334.56 : x
  2. Step 2: Convert to fraction form
    190,574.72/285,884.64 = 50,334.56/x
  3. Step 3: Cross multiply
    190,574.72x = 285,884.64 × 50,334.56
  4. Step 4: Simplify right side
    190,574.72x = 14,389,877,565.16
  5. Step 5: Solve for x
    x = 14,389,877,565.16/190,574.72
  6. Step 6: Final answer
    x = 75,507.80

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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.