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Finding the Fourth Proportional to 114,914.80, 172,372.20 and 36,028.90

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Solution

The fourth proportional to 114,914.80, 172,372.20 and 36,028.90 is: 54,043.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,914.80 : 172,372.20 = 36,028.90 : x
  2. Step 2: Convert to fraction form
    114,914.80/172,372.20 = 36,028.90/x
  3. Step 3: Cross multiply
    114,914.80x = 172,372.20 × 36,028.90
  4. Step 4: Simplify right side
    114,914.80x = 6,210,380,756.58
  5. Step 5: Solve for x
    x = 6,210,380,756.58/114,914.80
  6. Step 6: Final answer
    x = 54,043.35

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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.