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Finding the Fourth Proportional to 148,063.88, 204,333.08 and 80,995.88

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Solution

The fourth proportional to 148,063.88, 204,333.08 and 80,995.88 is: 111,777.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,063.88 : 204,333.08 = 80,995.88 : x
  2. Step 2: Convert to fraction form
    148,063.88/204,333.08 = 80,995.88/x
  3. Step 3: Cross multiply
    148,063.88x = 204,333.08 × 80,995.88
  4. Step 4: Simplify right side
    148,063.88x = 16,550,137,627.71
  5. Step 5: Solve for x
    x = 16,550,137,627.71/148,063.88
  6. Step 6: Final answer
    x = 111,777.01

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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.