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Finding the Fourth Proportional to 266,876.02, 400,051.59 and 126,733.06

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Solution

The fourth proportional to 266,876.02, 400,051.59 and 126,733.06 is: 189,974.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,876.02 : 400,051.59 = 126,733.06 : x
  2. Step 2: Convert to fraction form
    266,876.02/400,051.59 = 126,733.06/x
  3. Step 3: Cross multiply
    266,876.02x = 400,051.59 × 126,733.06
  4. Step 4: Simplify right side
    266,876.02x = 50,699,762,158.57
  5. Step 5: Solve for x
    x = 50,699,762,158.57/266,876.02
  6. Step 6: Final answer
    x = 189,974.96

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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.