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Finding the Fourth Proportional to 190,243.83, 283,686.90 and 188,535.49

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Solution

The fourth proportional to 190,243.83, 283,686.90 and 188,535.49 is: 281,139.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,243.83 : 283,686.90 = 188,535.49 : x
  2. Step 2: Convert to fraction form
    190,243.83/283,686.90 = 188,535.49/x
  3. Step 3: Cross multiply
    190,243.83x = 283,686.90 × 188,535.49
  4. Step 4: Simplify right side
    190,243.83x = 53,485,048,698.08
  5. Step 5: Solve for x
    x = 53,485,048,698.08/190,243.83
  6. Step 6: Final answer
    x = 281,139.47

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.