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Finding the Fourth Proportional to 303,505.36, 418,888.52 and 176,287.44

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Solution

The fourth proportional to 303,505.36, 418,888.52 and 176,287.44 is: 243,306.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,505.36 : 418,888.52 = 176,287.44 : x
  2. Step 2: Convert to fraction form
    303,505.36/418,888.52 = 176,287.44/x
  3. Step 3: Cross multiply
    303,505.36x = 418,888.52 × 176,287.44
  4. Step 4: Simplify right side
    303,505.36x = 73,844,784,836.19
  5. Step 5: Solve for x
    x = 73,844,784,836.19/303,505.36
  6. Step 6: Final answer
    x = 243,306.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.