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Finding the Fourth Proportional to 453,751.05, 680,626.77 and 187,218.60

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Solution

The fourth proportional to 453,751.05, 680,626.77 and 187,218.60 is: 280,827.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,751.05 : 680,626.77 = 187,218.60 : x
  2. Step 2: Convert to fraction form
    453,751.05/680,626.77 = 187,218.60/x
  3. Step 3: Cross multiply
    453,751.05x = 680,626.77 × 187,218.60
  4. Step 4: Simplify right side
    453,751.05x = 127,425,991,001.92
  5. Step 5: Solve for x
    x = 127,425,991,001.92/453,751.05
  6. Step 6: Final answer
    x = 280,827.98

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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.