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Finding the Fourth Proportional to 303,586.20, 455,379.30 and 93,234.60

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Solution

The fourth proportional to 303,586.20, 455,379.30 and 93,234.60 is: 139,851.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,586.20 : 455,379.30 = 93,234.60 : x
  2. Step 2: Convert to fraction form
    303,586.20/455,379.30 = 93,234.60/x
  3. Step 3: Cross multiply
    303,586.20x = 455,379.30 × 93,234.60
  4. Step 4: Simplify right side
    303,586.20x = 42,457,106,883.78
  5. Step 5: Solve for x
    x = 42,457,106,883.78/303,586.20
  6. Step 6: Final answer
    x = 139,851.90

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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.