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Finding the Fourth Proportional to 75,768.87, 104,561.88 and 41,777.43

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Solution

The fourth proportional to 75,768.87, 104,561.88 and 41,777.43 is: 57,653.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,768.87 : 104,561.88 = 41,777.43 : x
  2. Step 2: Convert to fraction form
    75,768.87/104,561.88 = 41,777.43/x
  3. Step 3: Cross multiply
    75,768.87x = 104,561.88 × 41,777.43
  4. Step 4: Simplify right side
    75,768.87x = 4,368,326,622.37
  5. Step 5: Solve for x
    x = 4,368,326,622.37/75,768.87
  6. Step 6: Final answer
    x = 57,653.32

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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.