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Finding the Fourth Proportional to 363,631.51, 545,068.10 and 203,472.64

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Solution

The fourth proportional to 363,631.51, 545,068.10 and 203,472.64 is: 304,996.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,631.51 : 545,068.10 = 203,472.64 : x
  2. Step 2: Convert to fraction form
    363,631.51/545,068.10 = 203,472.64/x
  3. Step 3: Cross multiply
    363,631.51x = 545,068.10 × 203,472.64
  4. Step 4: Simplify right side
    363,631.51x = 110,906,446,476.80
  5. Step 5: Solve for x
    x = 110,906,446,476.80/363,631.51
  6. Step 6: Final answer
    x = 304,996.80

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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.