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Finding the Fourth Proportional to 79,467.76, 109,667.53 and 43,658.67

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Solution

The fourth proportional to 79,467.76, 109,667.53 and 43,658.67 is: 60,250.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,467.76 : 109,667.53 = 43,658.67 : x
  2. Step 2: Convert to fraction form
    79,467.76/109,667.53 = 43,658.67/x
  3. Step 3: Cross multiply
    79,467.76x = 109,667.53 × 43,658.67
  4. Step 4: Simplify right side
    79,467.76x = 4,787,938,501.99
  5. Step 5: Solve for x
    x = 4,787,938,501.99/79,467.76
  6. Step 6: Final answer
    x = 60,250.08

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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.