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Finding the Fourth Proportional to 190,149.56, 285,202.74 and 49,919.12

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Solution

The fourth proportional to 190,149.56, 285,202.74 and 49,919.12 is: 74,873.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,149.56 : 285,202.74 = 49,919.12 : x
  2. Step 2: Convert to fraction form
    190,149.56/285,202.74 = 49,919.12/x
  3. Step 3: Cross multiply
    190,149.56x = 285,202.74 × 49,919.12
  4. Step 4: Simplify right side
    190,149.56x = 14,237,069,802.39
  5. Step 5: Solve for x
    x = 14,237,069,802.39/190,149.56
  6. Step 6: Final answer
    x = 74,873.01

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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.