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Finding the Fourth Proportional to 241,974, 333,924.12 and 135,990

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Solution

The fourth proportional to 241,974, 333,924.12 and 135,990 is: 187,666.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    241,974 : 333,924.12 = 135,990 : x
  2. Step 2: Convert to fraction form
    241,974/333,924.12 = 135,990/x
  3. Step 3: Cross multiply
    241,974x = 333,924.12 × 135,990
  4. Step 4: Simplify right side
    241,974x = 45,410,341,078.80
  5. Step 5: Solve for x
    x = 45,410,341,078.80/241,974
  6. Step 6: Final answer
    x = 187,666.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.