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Finding the Fourth Proportional to 347,173.56, 520,165.80 and 189,512.46

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Solution

The fourth proportional to 347,173.56, 520,165.80 and 189,512.46 is: 283,944.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,173.56 : 520,165.80 = 189,512.46 : x
  2. Step 2: Convert to fraction form
    347,173.56/520,165.80 = 189,512.46/x
  3. Step 3: Cross multiply
    347,173.56x = 520,165.80 × 189,512.46
  4. Step 4: Simplify right side
    347,173.56x = 98,577,900,365.87
  5. Step 5: Solve for x
    x = 98,577,900,365.87/347,173.56
  6. Step 6: Final answer
    x = 283,944.15

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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.