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Finding the Fourth Proportional to 148,676.95, 205,080.87 and 88,204.78

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Solution

The fourth proportional to 148,676.95, 205,080.87 and 88,204.78 is: 121,667.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,676.95 : 205,080.87 = 88,204.78 : x
  2. Step 2: Convert to fraction form
    148,676.95/205,080.87 = 88,204.78/x
  3. Step 3: Cross multiply
    148,676.95x = 205,080.87 × 88,204.78
  4. Step 4: Simplify right side
    148,676.95x = 18,089,113,359.60
  5. Step 5: Solve for x
    x = 18,089,113,359.60/148,676.95
  6. Step 6: Final answer
    x = 121,667.23

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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.