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Finding the Fourth Proportional to 309,059.96, 426,474.06 and 174,923.96

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Solution

The fourth proportional to 309,059.96, 426,474.06 and 174,923.96 is: 241,378.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,059.96 : 426,474.06 = 174,923.96 : x
  2. Step 2: Convert to fraction form
    309,059.96/426,474.06 = 174,923.96/x
  3. Step 3: Cross multiply
    309,059.96x = 426,474.06 × 174,923.96
  4. Step 4: Simplify right side
    309,059.96x = 74,600,531,412.48
  5. Step 5: Solve for x
    x = 74,600,531,412.48/309,059.96
  6. Step 6: Final answer
    x = 241,378.83

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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.