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Finding the Fourth Proportional to 266,060.53, 399,156.41 and 79,072.03

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Solution

The fourth proportional to 266,060.53, 399,156.41 and 79,072.03 is: 118,627.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,060.53 : 399,156.41 = 79,072.03 : x
  2. Step 2: Convert to fraction form
    266,060.53/399,156.41 = 79,072.03/x
  3. Step 3: Cross multiply
    266,060.53x = 399,156.41 × 79,072.03
  4. Step 4: Simplify right side
    266,060.53x = 31,562,107,626.21
  5. Step 5: Solve for x
    x = 31,562,107,626.21/266,060.53
  6. Step 6: Final answer
    x = 118,627.55

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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.