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Finding the Fourth Proportional to 301,663.80, 452,495.70 and 196,687.80

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Solution

The fourth proportional to 301,663.80, 452,495.70 and 196,687.80 is: 295,031.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,663.80 : 452,495.70 = 196,687.80 : x
  2. Step 2: Convert to fraction form
    301,663.80/452,495.70 = 196,687.80/x
  3. Step 3: Cross multiply
    301,663.80x = 452,495.70 × 196,687.80
  4. Step 4: Simplify right side
    301,663.80x = 89,000,383,742.46
  5. Step 5: Solve for x
    x = 89,000,383,742.46/301,663.80
  6. Step 6: Final answer
    x = 295,031.70

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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.