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Finding the Fourth Proportional to 329,728.70, 494,537.70 and 93,015.92

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Solution

The fourth proportional to 329,728.70, 494,537.70 and 93,015.92 is: 139,508.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,728.70 : 494,537.70 = 93,015.92 : x
  2. Step 2: Convert to fraction form
    329,728.70/494,537.70 = 93,015.92/x
  3. Step 3: Cross multiply
    329,728.70x = 494,537.70 × 93,015.92
  4. Step 4: Simplify right side
    329,728.70x = 45,999,879,140.18
  5. Step 5: Solve for x
    x = 45,999,879,140.18/329,728.70
  6. Step 6: Final answer
    x = 139,508.27

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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.