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Finding the Fourth Proportional to 57,258.50, 79,016.93 and 31,765.37

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Solution

The fourth proportional to 57,258.50, 79,016.93 and 31,765.37 is: 43,836.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,258.50 : 79,016.93 = 31,765.37 : x
  2. Step 2: Convert to fraction form
    57,258.50/79,016.93 = 31,765.37/x
  3. Step 3: Cross multiply
    57,258.50x = 79,016.93 × 31,765.37
  4. Step 4: Simplify right side
    57,258.50x = 2,510,001,463.80
  5. Step 5: Solve for x
    x = 2,510,001,463.80/57,258.50
  6. Step 6: Final answer
    x = 43,836.32

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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.