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Finding the Fourth Proportional to 79,907.36, 119,914.55 and 33,160.28

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Solution

The fourth proportional to 79,907.36, 119,914.55 and 33,160.28 is: 49,762.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,907.36 : 119,914.55 = 33,160.28 : x
  2. Step 2: Convert to fraction form
    79,907.36/119,914.55 = 33,160.28/x
  3. Step 3: Cross multiply
    79,907.36x = 119,914.55 × 33,160.28
  4. Step 4: Simplify right side
    79,907.36x = 3,976,400,054.07
  5. Step 5: Solve for x
    x = 3,976,400,054.07/79,907.36
  6. Step 6: Final answer
    x = 49,762.63

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1.5x scale

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.