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Finding the Fourth Proportional to 344,651.78, 475,611.14 and 191,689.51

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Solution

The fourth proportional to 344,651.78, 475,611.14 and 191,689.51 is: 264,526.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,651.78 : 475,611.14 = 191,689.51 : x
  2. Step 2: Convert to fraction form
    344,651.78/475,611.14 = 191,689.51/x
  3. Step 3: Cross multiply
    344,651.78x = 475,611.14 × 191,689.51
  4. Step 4: Simplify right side
    344,651.78x = 91,169,665,418.69
  5. Step 5: Solve for x
    x = 91,169,665,418.69/344,651.78
  6. Step 6: Final answer
    x = 264,526.90

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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.