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Finding the Fourth Proportional to 70,668.48, 97,523.64 and 40,453.68

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Solution

The fourth proportional to 70,668.48, 97,523.64 and 40,453.68 is: 55,826.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,668.48 : 97,523.64 = 40,453.68 : x
  2. Step 2: Convert to fraction form
    70,668.48/97,523.64 = 40,453.68/x
  3. Step 3: Cross multiply
    70,668.48x = 97,523.64 × 40,453.68
  4. Step 4: Simplify right side
    70,668.48x = 3,945,190,125.00
  5. Step 5: Solve for x
    x = 3,945,190,125.00/70,668.48
  6. Step 6: Final answer
    x = 55,826.73

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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.