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Finding the Fourth Proportional to 70,771.68, 106,057.68 and 55,119.84

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Solution

The fourth proportional to 70,771.68, 106,057.68 and 55,119.84 is: 82,602.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,771.68 : 106,057.68 = 55,119.84 : x
  2. Step 2: Convert to fraction form
    70,771.68/106,057.68 = 55,119.84/x
  3. Step 3: Cross multiply
    70,771.68x = 106,057.68 × 55,119.84
  4. Step 4: Simplify right side
    70,771.68x = 5,845,882,352.37
  5. Step 5: Solve for x
    x = 5,845,882,352.37/70,771.68
  6. Step 6: Final answer
    x = 82,602.00

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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.