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Finding the Fourth Proportional to 483,211.80, 724,814.10 and 146,251.80

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Solution

The fourth proportional to 483,211.80, 724,814.10 and 146,251.80 is: 219,376.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,211.80 : 724,814.10 = 146,251.80 : x
  2. Step 2: Convert to fraction form
    483,211.80/724,814.10 = 146,251.80/x
  3. Step 3: Cross multiply
    483,211.80x = 724,814.10 × 146,251.80
  4. Step 4: Simplify right side
    483,211.80x = 106,005,366,790.38
  5. Step 5: Solve for x
    x = 106,005,366,790.38/483,211.80
  6. Step 6: Final answer
    x = 219,376.61

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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.