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Finding the Fourth Proportional to 446,861.59, 670,336.12 and 147,219.91

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Solution

The fourth proportional to 446,861.59, 670,336.12 and 147,219.91 is: 220,844.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,861.59 : 670,336.12 = 147,219.91 : x
  2. Step 2: Convert to fraction form
    446,861.59/670,336.12 = 147,219.91/x
  3. Step 3: Cross multiply
    446,861.59x = 670,336.12 × 147,219.91
  4. Step 4: Simplify right side
    446,861.59x = 98,686,823,256.15
  5. Step 5: Solve for x
    x = 98,686,823,256.15/446,861.59
  6. Step 6: Final answer
    x = 220,844.27

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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.