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Finding the Fourth Proportional to 329,176.44, 493,666.25 and 171,318.78

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Solution

The fourth proportional to 329,176.44, 493,666.25 and 171,318.78 is: 256,926.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,176.44 : 493,666.25 = 171,318.78 : x
  2. Step 2: Convert to fraction form
    329,176.44/493,666.25 = 171,318.78/x
  3. Step 3: Cross multiply
    329,176.44x = 493,666.25 × 171,318.78
  4. Step 4: Simplify right side
    329,176.44x = 84,574,298,820.58
  5. Step 5: Solve for x
    x = 84,574,298,820.58/329,176.44
  6. Step 6: Final answer
    x = 256,926.95

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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.