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Finding the Fourth Proportional to 371,280.94, 556,832.21 and 171,409.30

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Solution

The fourth proportional to 371,280.94, 556,832.21 and 171,409.30 is: 257,072.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,280.94 : 556,832.21 = 171,409.30 : x
  2. Step 2: Convert to fraction form
    371,280.94/556,832.21 = 171,409.30/x
  3. Step 3: Cross multiply
    371,280.94x = 556,832.21 × 171,409.30
  4. Step 4: Simplify right side
    371,280.94x = 95,446,217,084.43
  5. Step 5: Solve for x
    x = 95,446,217,084.43/371,280.94
  6. Step 6: Final answer
    x = 257,072.76

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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.