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Finding the Fourth Proportional to 349,124, 481,791.12 and 190,148

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Solution

The fourth proportional to 349,124, 481,791.12 and 190,148 is: 262,404.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,124 : 481,791.12 = 190,148 : x
  2. Step 2: Convert to fraction form
    349,124/481,791.12 = 190,148/x
  3. Step 3: Cross multiply
    349,124x = 481,791.12 × 190,148
  4. Step 4: Simplify right side
    349,124x = 91,611,617,885.76
  5. Step 5: Solve for x
    x = 91,611,617,885.76/349,124
  6. Step 6: Final answer
    x = 262,404.24

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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.