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Finding the Fourth Proportional to 231,740.80, 347,287.20 and 184,436.80

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Solution

The fourth proportional to 231,740.80, 347,287.20 and 184,436.80 is: 276,397.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,740.80 : 347,287.20 = 184,436.80 : x
  2. Step 2: Convert to fraction form
    231,740.80/347,287.20 = 184,436.80/x
  3. Step 3: Cross multiply
    231,740.80x = 347,287.20 × 184,436.80
  4. Step 4: Simplify right side
    231,740.80x = 64,052,539,848.96
  5. Step 5: Solve for x
    x = 64,052,539,848.96/231,740.80
  6. Step 6: Final answer
    x = 276,397.34

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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.