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Finding the Fourth Proportional to 240,622.20, 360,981.90 and 82,866.60

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Solution

The fourth proportional to 240,622.20, 360,981.90 and 82,866.60 is: 124,316.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,622.20 : 360,981.90 = 82,866.60 : x
  2. Step 2: Convert to fraction form
    240,622.20/360,981.90 = 82,866.60/x
  3. Step 3: Cross multiply
    240,622.20x = 360,981.90 × 82,866.60
  4. Step 4: Simplify right side
    240,622.20x = 29,913,342,714.54
  5. Step 5: Solve for x
    x = 29,913,342,714.54/240,622.20
  6. Step 6: Final answer
    x = 124,316.64

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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.