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Finding the Fourth Proportional to 54,100.80, 81,102.60 and 48,195.90

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Solution

The fourth proportional to 54,100.80, 81,102.60 and 48,195.90 is: 72,250.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,100.80 : 81,102.60 = 48,195.90 : x
  2. Step 2: Convert to fraction form
    54,100.80/81,102.60 = 48,195.90/x
  3. Step 3: Cross multiply
    54,100.80x = 81,102.60 × 48,195.90
  4. Step 4: Simplify right side
    54,100.80x = 3,908,812,799.34
  5. Step 5: Solve for x
    x = 3,908,812,799.34/54,100.80
  6. Step 6: Final answer
    x = 72,250.55

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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.