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Finding the Fourth Proportional to 446,307.88, 669,461.64 and 130,764.64

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Solution

The fourth proportional to 446,307.88, 669,461.64 and 130,764.64 is: 196,146.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,307.88 : 669,461.64 = 130,764.64 : x
  2. Step 2: Convert to fraction form
    446,307.88/669,461.64 = 130,764.64/x
  3. Step 3: Cross multiply
    446,307.88x = 669,461.64 × 130,764.64
  4. Step 4: Simplify right side
    446,307.88x = 87,541,910,348.41
  5. Step 5: Solve for x
    x = 87,541,910,348.41/446,307.88
  6. Step 6: Final answer
    x = 196,146.91

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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.