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Finding the Fourth Proportional to 356,558.25, 492,054.15 and 195,409.77

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Solution

The fourth proportional to 356,558.25, 492,054.15 and 195,409.77 is: 269,667.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,558.25 : 492,054.15 = 195,409.77 : x
  2. Step 2: Convert to fraction form
    356,558.25/492,054.15 = 195,409.77/x
  3. Step 3: Cross multiply
    356,558.25x = 492,054.15 × 195,409.77
  4. Step 4: Simplify right side
    356,558.25x = 96,152,188,279.05
  5. Step 5: Solve for x
    x = 96,152,188,279.05/356,558.25
  6. Step 6: Final answer
    x = 269,667.55

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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.