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Finding the Fourth Proportional to 371,293.92, 556,851.60 and 171,422.28

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Solution

The fourth proportional to 371,293.92, 556,851.60 and 171,422.28 is: 257,092.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,293.92 : 556,851.60 = 171,422.28 : x
  2. Step 2: Convert to fraction form
    371,293.92/556,851.60 = 171,422.28/x
  3. Step 3: Cross multiply
    371,293.92x = 556,851.60 × 171,422.28
  4. Step 4: Simplify right side
    371,293.92x = 95,456,770,893.65
  5. Step 5: Solve for x
    x = 95,456,770,893.65/371,293.92
  6. Step 6: Final answer
    x = 257,092.20

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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.