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Finding the Fourth Proportional to 453,727.20, 680,655.60 and 154,221.60

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Solution

The fourth proportional to 453,727.20, 680,655.60 and 154,221.60 is: 231,354.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,727.20 : 680,655.60 = 154,221.60 : x
  2. Step 2: Convert to fraction form
    453,727.20/680,655.60 = 154,221.60/x
  3. Step 3: Cross multiply
    453,727.20x = 680,655.60 × 154,221.60
  4. Step 4: Simplify right side
    453,727.20x = 104,971,795,680.96
  5. Step 5: Solve for x
    x = 104,971,795,680.96/453,727.20
  6. Step 6: Final answer
    x = 231,354.43

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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.