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Finding the Fourth Proportional to 305,958.30, 458,759.25 and 118,751.10

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Solution

The fourth proportional to 305,958.30, 458,759.25 and 118,751.10 is: 178,057.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,958.30 : 458,759.25 = 118,751.10 : x
  2. Step 2: Convert to fraction form
    305,958.30/458,759.25 = 118,751.10/x
  3. Step 3: Cross multiply
    305,958.30x = 458,759.25 × 118,751.10
  4. Step 4: Simplify right side
    305,958.30x = 54,478,165,572.68
  5. Step 5: Solve for x
    x = 54,478,165,572.68/305,958.30
  6. Step 6: Final answer
    x = 178,057.49

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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.