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Finding the Fourth Proportional to 499,772.89, 749,658.42 and 162,813.15

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Solution

The fourth proportional to 499,772.89, 749,658.42 and 162,813.15 is: 244,219.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,772.89 : 749,658.42 = 162,813.15 : x
  2. Step 2: Convert to fraction form
    499,772.89/749,658.42 = 162,813.15/x
  3. Step 3: Cross multiply
    499,772.89x = 749,658.42 × 162,813.15
  4. Step 4: Simplify right side
    499,772.89x = 122,054,246,583.55
  5. Step 5: Solve for x
    x = 122,054,246,583.55/499,772.89
  6. Step 6: Final answer
    x = 244,219.42

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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.