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Finding the Fourth Proportional to 64,958.76, 89,615.97 and 43,701.12

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Solution

The fourth proportional to 64,958.76, 89,615.97 and 43,701.12 is: 60,289.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,958.76 : 89,615.97 = 43,701.12 : x
  2. Step 2: Convert to fraction form
    64,958.76/89,615.97 = 43,701.12/x
  3. Step 3: Cross multiply
    64,958.76x = 89,615.97 × 43,701.12
  4. Step 4: Simplify right side
    64,958.76x = 3,916,318,258.89
  5. Step 5: Solve for x
    x = 3,916,318,258.89/64,958.76
  6. Step 6: Final answer
    x = 60,289.30

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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.