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Finding the Fourth Proportional to 118,478.25, 177,745.46 and 35,374.41

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Solution

The fourth proportional to 118,478.25, 177,745.46 and 35,374.41 is: 53,070.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,478.25 : 177,745.46 = 35,374.41 : x
  2. Step 2: Convert to fraction form
    118,478.25/177,745.46 = 35,374.41/x
  3. Step 3: Cross multiply
    118,478.25x = 177,745.46 × 35,374.41
  4. Step 4: Simplify right side
    118,478.25x = 6,287,640,600.81
  5. Step 5: Solve for x
    x = 6,287,640,600.81/118,478.25
  6. Step 6: Final answer
    x = 53,070.00

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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.