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Finding the Fourth Proportional to 329,099.72, 493,668.72 and 92,460.84

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Solution

The fourth proportional to 329,099.72, 493,668.72 and 92,460.84 is: 138,696.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,099.72 : 493,668.72 = 92,460.84 : x
  2. Step 2: Convert to fraction form
    329,099.72/493,668.72 = 92,460.84/x
  3. Step 3: Cross multiply
    329,099.72x = 493,668.72 × 92,460.84
  4. Step 4: Simplify right side
    329,099.72x = 45,645,024,532.92
  5. Step 5: Solve for x
    x = 45,645,024,532.92/329,099.72
  6. Step 6: Final answer
    x = 138,696.64

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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.