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Finding the Fourth Proportional to 266,653.73, 367,987.91 and 159,203.72

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Solution

The fourth proportional to 266,653.73, 367,987.91 and 159,203.72 is: 219,704.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,653.73 : 367,987.91 = 159,203.72 : x
  2. Step 2: Convert to fraction form
    266,653.73/367,987.91 = 159,203.72/x
  3. Step 3: Cross multiply
    266,653.73x = 367,987.91 × 159,203.72
  4. Step 4: Simplify right side
    266,653.73x = 58,585,044,187.03
  5. Step 5: Solve for x
    x = 58,585,044,187.03/266,653.73
  6. Step 6: Final answer
    x = 219,704.57

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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.