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Finding the Fourth Proportional to 329,047.38, 493,596.72 and 104,420.61

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Solution

The fourth proportional to 329,047.38, 493,596.72 and 104,420.61 is: 156,639.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,047.38 : 493,596.72 = 104,420.61 : x
  2. Step 2: Convert to fraction form
    329,047.38/493,596.72 = 104,420.61/x
  3. Step 3: Cross multiply
    329,047.38x = 493,596.72 × 104,420.61
  4. Step 4: Simplify right side
    329,047.38x = 51,541,670,596.40
  5. Step 5: Solve for x
    x = 51,541,670,596.40/329,047.38
  6. Step 6: Final answer
    x = 156,639.05

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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.