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Finding the Fourth Proportional to 266,412.20, 399,099.90 and 160,917.80

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Solution

The fourth proportional to 266,412.20, 399,099.90 and 160,917.80 is: 241,063.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,412.20 : 399,099.90 = 160,917.80 : x
  2. Step 2: Convert to fraction form
    266,412.20/399,099.90 = 160,917.80/x
  3. Step 3: Cross multiply
    266,412.20x = 399,099.90 × 160,917.80
  4. Step 4: Simplify right side
    266,412.20x = 64,222,277,888.22
  5. Step 5: Solve for x
    x = 64,222,277,888.22/266,412.20
  6. Step 6: Final answer
    x = 241,063.58

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1.5x scale

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.