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Finding the Fourth Proportional to 77,825.88, 107,391.96 and 43,833.42

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Solution

The fourth proportional to 77,825.88, 107,391.96 and 43,833.42 is: 60,485.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,825.88 : 107,391.96 = 43,833.42 : x
  2. Step 2: Convert to fraction form
    77,825.88/107,391.96 = 43,833.42/x
  3. Step 3: Cross multiply
    77,825.88x = 107,391.96 × 43,833.42
  4. Step 4: Simplify right side
    77,825.88x = 4,707,356,887.30
  5. Step 5: Solve for x
    x = 4,707,356,887.30/77,825.88
  6. Step 6: Final answer
    x = 60,485.75

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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.