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Finding the Fourth Proportional to 118,181.55, 177,273.87 and 39,295.78

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Solution

The fourth proportional to 118,181.55, 177,273.87 and 39,295.78 is: 58,944.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,181.55 : 177,273.87 = 39,295.78 : x
  2. Step 2: Convert to fraction form
    118,181.55/177,273.87 = 39,295.78/x
  3. Step 3: Cross multiply
    118,181.55x = 177,273.87 × 39,295.78
  4. Step 4: Simplify right side
    118,181.55x = 6,966,115,093.51
  5. Step 5: Solve for x
    x = 6,966,115,093.51/118,181.55
  6. Step 6: Final answer
    x = 58,944.18

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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.