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Finding the Fourth Proportional to 72,596.70, 108,908.79 and 25,209.93

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Solution

The fourth proportional to 72,596.70, 108,908.79 and 25,209.93 is: 37,819.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,596.70 : 108,908.79 = 25,209.93 : x
  2. Step 2: Convert to fraction form
    72,596.70/108,908.79 = 25,209.93/x
  3. Step 3: Cross multiply
    72,596.70x = 108,908.79 × 25,209.93
  4. Step 4: Simplify right side
    72,596.70x = 2,745,582,972.28
  5. Step 5: Solve for x
    x = 2,745,582,972.28/72,596.70
  6. Step 6: Final answer
    x = 37,819.67

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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.