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Finding the Fourth Proportional to 453,775.79, 680,505.03 and 133,842.80

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Solution

The fourth proportional to 453,775.79, 680,505.03 and 133,842.80 is: 200,717.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,775.79 : 680,505.03 = 133,842.80 : x
  2. Step 2: Convert to fraction form
    453,775.79/680,505.03 = 133,842.80/x
  3. Step 3: Cross multiply
    453,775.79x = 680,505.03 × 133,842.80
  4. Step 4: Simplify right side
    453,775.79x = 91,080,700,330.55
  5. Step 5: Solve for x
    x = 91,080,700,330.55/453,775.79
  6. Step 6: Final answer
    x = 200,717.41

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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.