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Finding the Fourth Proportional to 315,194.82, 434,914.44 and 177,354.54

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Solution

The fourth proportional to 315,194.82, 434,914.44 and 177,354.54 is: 244,718.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,194.82 : 434,914.44 = 177,354.54 : x
  2. Step 2: Convert to fraction form
    315,194.82/434,914.44 = 177,354.54/x
  3. Step 3: Cross multiply
    315,194.82x = 434,914.44 × 177,354.54
  4. Step 4: Simplify right side
    315,194.82x = 77,134,050,445.56
  5. Step 5: Solve for x
    x = 77,134,050,445.56/315,194.82
  6. Step 6: Final answer
    x = 244,718.65

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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.