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Finding the Fourth Proportional to 329,672.40, 494,508.60 and 170,240.10

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Solution

The fourth proportional to 329,672.40, 494,508.60 and 170,240.10 is: 255,360.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,672.40 : 494,508.60 = 170,240.10 : x
  2. Step 2: Convert to fraction form
    329,672.40/494,508.60 = 170,240.10/x
  3. Step 3: Cross multiply
    329,672.40x = 494,508.60 × 170,240.10
  4. Step 4: Simplify right side
    329,672.40x = 84,185,193,514.86
  5. Step 5: Solve for x
    x = 84,185,193,514.86/329,672.40
  6. Step 6: Final answer
    x = 255,360.15

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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.