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Finding the Fourth Proportional to 52,969.72, 73,080.11 and 30,300.45

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Solution

The fourth proportional to 52,969.72, 73,080.11 and 30,300.45 is: 41,804.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,969.72 : 73,080.11 = 30,300.45 : x
  2. Step 2: Convert to fraction form
    52,969.72/73,080.11 = 30,300.45/x
  3. Step 3: Cross multiply
    52,969.72x = 73,080.11 × 30,300.45
  4. Step 4: Simplify right side
    52,969.72x = 2,214,360,219.05
  5. Step 5: Solve for x
    x = 2,214,360,219.05/52,969.72
  6. Step 6: Final answer
    x = 41,804.27

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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.