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Finding the Fourth Proportional to 371,340.36, 556,921.26 and 171,468.72

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Solution

The fourth proportional to 371,340.36, 556,921.26 and 171,468.72 is: 257,161.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,340.36 : 556,921.26 = 171,468.72 : x
  2. Step 2: Convert to fraction form
    371,340.36/556,921.26 = 171,468.72/x
  3. Step 3: Cross multiply
    371,340.36x = 556,921.26 × 171,468.72
  4. Step 4: Simplify right side
    371,340.36x = 95,494,575,592.99
  5. Step 5: Solve for x
    x = 95,494,575,592.99/371,340.36
  6. Step 6: Final answer
    x = 257,161.85

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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.