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Finding the Fourth Proportional to 371,494.96, 557,336.76 and 171,959.28

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Solution

The fourth proportional to 371,494.96, 557,336.76 and 171,959.28 is: 257,982.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,494.96 : 557,336.76 = 171,959.28 : x
  2. Step 2: Convert to fraction form
    371,494.96/557,336.76 = 171,959.28/x
  3. Step 3: Cross multiply
    371,494.96x = 557,336.76 × 171,959.28
  4. Step 4: Simplify right side
    371,494.96x = 95,839,227,967.13
  5. Step 5: Solve for x
    x = 95,839,227,967.13/371,494.96
  6. Step 6: Final answer
    x = 257,982.58

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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.