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Finding the Fourth Proportional to 271,473.99, 406,969.01 and 103,112.55

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Solution

The fourth proportional to 271,473.99, 406,969.01 and 103,112.55 is: 154,576.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,473.99 : 406,969.01 = 103,112.55 : x
  2. Step 2: Convert to fraction form
    271,473.99/406,969.01 = 103,112.55/x
  3. Step 3: Cross multiply
    271,473.99x = 406,969.01 × 103,112.55
  4. Step 4: Simplify right side
    271,473.99x = 41,963,612,649.86
  5. Step 5: Solve for x
    x = 41,963,612,649.86/271,473.99
  6. Step 6: Final answer
    x = 154,576.92

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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.