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Finding the Fourth Proportional to 70,860.80, 106,194.72 and 33,415.04

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Solution

The fourth proportional to 70,860.80, 106,194.72 and 33,415.04 is: 50,077.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,860.80 : 106,194.72 = 33,415.04 : x
  2. Step 2: Convert to fraction form
    70,860.80/106,194.72 = 33,415.04/x
  3. Step 3: Cross multiply
    70,860.80x = 106,194.72 × 33,415.04
  4. Step 4: Simplify right side
    70,860.80x = 3,548,500,816.59
  5. Step 5: Solve for x
    x = 3,548,500,816.59/70,860.80
  6. Step 6: Final answer
    x = 50,077.06

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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.