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Finding the Fourth Proportional to 453,701.01, 680,468.89 and 133,786.65

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Solution

The fourth proportional to 453,701.01, 680,468.89 and 133,786.65 is: 200,655.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,701.01 : 680,468.89 = 133,786.65 : x
  2. Step 2: Convert to fraction form
    453,701.01/680,468.89 = 133,786.65/x
  3. Step 3: Cross multiply
    453,701.01x = 680,468.89 × 133,786.65
  4. Step 4: Simplify right side
    453,701.01x = 91,037,653,222.32
  5. Step 5: Solve for x
    x = 91,037,653,222.32/453,701.01
  6. Step 6: Final answer
    x = 200,655.61

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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.