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Finding the Fourth Proportional to 77,550.94, 107,020.32 and 43,559.48

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Solution

The fourth proportional to 77,550.94, 107,020.32 and 43,559.48 is: 60,112.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,550.94 : 107,020.32 = 43,559.48 : x
  2. Step 2: Convert to fraction form
    77,550.94/107,020.32 = 43,559.48/x
  3. Step 3: Cross multiply
    77,550.94x = 107,020.32 × 43,559.48
  4. Step 4: Simplify right side
    77,550.94x = 4,661,749,488.63
  5. Step 5: Solve for x
    x = 4,661,749,488.63/77,550.94
  6. Step 6: Final answer
    x = 60,112.10

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1.5x scale

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.