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Finding the Fourth Proportional to 321,332.89, 482,288.43 and 171,701.08

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Solution

The fourth proportional to 321,332.89, 482,288.43 and 171,701.08 is: 257,706.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,332.89 : 482,288.43 = 171,701.08 : x
  2. Step 2: Convert to fraction form
    321,332.89/482,288.43 = 171,701.08/x
  3. Step 3: Cross multiply
    321,332.89x = 482,288.43 × 171,701.08
  4. Step 4: Simplify right side
    321,332.89x = 82,809,445,487.72
  5. Step 5: Solve for x
    x = 82,809,445,487.72/321,332.89
  6. Step 6: Final answer
    x = 257,706.10

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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.