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Finding the Fourth Proportional to 78,783.34, 118,176.60 and 22,625.30

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Solution

The fourth proportional to 78,783.34, 118,176.60 and 22,625.30 is: 33,938.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,783.34 : 118,176.60 = 22,625.30 : x
  2. Step 2: Convert to fraction form
    78,783.34/118,176.60 = 22,625.30/x
  3. Step 3: Cross multiply
    78,783.34x = 118,176.60 × 22,625.30
  4. Step 4: Simplify right side
    78,783.34x = 2,673,781,027.98
  5. Step 5: Solve for x
    x = 2,673,781,027.98/78,783.34
  6. Step 6: Final answer
    x = 33,938.41

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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.