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Finding the Fourth Proportional to 77,794.66, 107,380.43 and 45,536.83

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Solution

The fourth proportional to 77,794.66, 107,380.43 and 45,536.83 is: 62,854.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,794.66 : 107,380.43 = 45,536.83 : x
  2. Step 2: Convert to fraction form
    77,794.66/107,380.43 = 45,536.83/x
  3. Step 3: Cross multiply
    77,794.66x = 107,380.43 × 45,536.83
  4. Step 4: Simplify right side
    77,794.66x = 4,889,764,231.63
  5. Step 5: Solve for x
    x = 4,889,764,231.63/77,794.66
  6. Step 6: Final answer
    x = 62,854.75

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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.