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Finding the Fourth Proportional to 75,958.39, 113,904.71 and 31,554.73

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Solution

The fourth proportional to 75,958.39, 113,904.71 and 31,554.73 is: 47,318.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,958.39 : 113,904.71 = 31,554.73 : x
  2. Step 2: Convert to fraction form
    75,958.39/113,904.71 = 31,554.73/x
  3. Step 3: Cross multiply
    75,958.39x = 113,904.71 × 31,554.73
  4. Step 4: Simplify right side
    75,958.39x = 3,594,231,642.48
  5. Step 5: Solve for x
    x = 3,594,231,642.48/75,958.39
  6. Step 6: Final answer
    x = 47,318.43

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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.