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Finding the Fourth Proportional to 349,136.08, 481,807.72 and 190,160.08

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Solution

The fourth proportional to 349,136.08, 481,807.72 and 190,160.08 is: 262,420.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,136.08 : 481,807.72 = 190,160.08 : x
  2. Step 2: Convert to fraction form
    349,136.08/481,807.72 = 190,160.08/x
  3. Step 3: Cross multiply
    349,136.08x = 481,807.72 × 190,160.08
  4. Step 4: Simplify right side
    349,136.08x = 91,620,594,579.82
  5. Step 5: Solve for x
    x = 91,620,594,579.82/349,136.08
  6. Step 6: Final answer
    x = 262,420.87

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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.