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Finding the Fourth Proportional to 266,911.53, 400,477.85 and 117,074.49

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Solution

The fourth proportional to 266,911.53, 400,477.85 and 117,074.49 is: 175,660.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,911.53 : 400,477.85 = 117,074.49 : x
  2. Step 2: Convert to fraction form
    266,911.53/400,477.85 = 117,074.49/x
  3. Step 3: Cross multiply
    266,911.53x = 400,477.85 × 117,074.49
  4. Step 4: Simplify right side
    266,911.53x = 46,885,740,045.05
  5. Step 5: Solve for x
    x = 46,885,740,045.05/266,911.53
  6. Step 6: Final answer
    x = 175,660.23

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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.