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Finding the Fourth Proportional to 356,783.85, 492,361.47 and 195,641.64

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Solution

The fourth proportional to 356,783.85, 492,361.47 and 195,641.64 is: 269,985.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,783.85 : 492,361.47 = 195,641.64 : x
  2. Step 2: Convert to fraction form
    356,783.85/492,361.47 = 195,641.64/x
  3. Step 3: Cross multiply
    356,783.85x = 492,361.47 × 195,641.64
  4. Step 4: Simplify right side
    356,783.85x = 96,326,405,463.61
  5. Step 5: Solve for x
    x = 96,326,405,463.61/356,783.85
  6. Step 6: Final answer
    x = 269,985.33

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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.