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Finding the Fourth Proportional to 329,931.62, 494,798.64 and 172,073.96

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Solution

The fourth proportional to 329,931.62, 494,798.64 and 172,073.96 is: 258,059.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,931.62 : 494,798.64 = 172,073.96 : x
  2. Step 2: Convert to fraction form
    329,931.62/494,798.64 = 172,073.96/x
  3. Step 3: Cross multiply
    329,931.62x = 494,798.64 × 172,073.96
  4. Step 4: Simplify right side
    329,931.62x = 85,141,961,387.41
  5. Step 5: Solve for x
    x = 85,141,961,387.41/329,931.62
  6. Step 6: Final answer
    x = 258,059.42

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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.