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Finding the Fourth Proportional to 367,099.05, 550,484.55 and 142,384.80

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Solution

The fourth proportional to 367,099.05, 550,484.55 and 142,384.80 is: 213,513.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,099.05 : 550,484.55 = 142,384.80 : x
  2. Step 2: Convert to fraction form
    367,099.05/550,484.55 = 142,384.80/x
  3. Step 3: Cross multiply
    367,099.05x = 550,484.55 × 142,384.80
  4. Step 4: Simplify right side
    367,099.05x = 78,380,632,554.84
  5. Step 5: Solve for x
    x = 78,380,632,554.84/367,099.05
  6. Step 6: Final answer
    x = 213,513.58

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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.