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Finding the Fourth Proportional to 92,313.28, 138,471.04 and 25,749.36

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Solution

The fourth proportional to 92,313.28, 138,471.04 and 25,749.36 is: 38,624.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,313.28 : 138,471.04 = 25,749.36 : x
  2. Step 2: Convert to fraction form
    92,313.28/138,471.04 = 25,749.36/x
  3. Step 3: Cross multiply
    92,313.28x = 138,471.04 × 25,749.36
  4. Step 4: Simplify right side
    92,313.28x = 3,565,540,658.53
  5. Step 5: Solve for x
    x = 3,565,540,658.53/92,313.28
  6. Step 6: Final answer
    x = 38,624.35

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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.