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Finding the Fourth Proportional to 266,144.40, 399,217.08 and 177,570.96

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Solution

The fourth proportional to 266,144.40, 399,217.08 and 177,570.96 is: 266,356.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,144.40 : 399,217.08 = 177,570.96 : x
  2. Step 2: Convert to fraction form
    266,144.40/399,217.08 = 177,570.96/x
  3. Step 3: Cross multiply
    266,144.40x = 399,217.08 × 177,570.96
  4. Step 4: Simplify right side
    266,144.40x = 70,889,360,144.00
  5. Step 5: Solve for x
    x = 70,889,360,144.00/266,144.40
  6. Step 6: Final answer
    x = 266,356.76

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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.