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Finding the Fourth Proportional to 453,764.70, 680,488.34 and 133,831.49

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Solution

The fourth proportional to 453,764.70, 680,488.34 and 133,831.49 is: 200,700.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,764.70 : 680,488.34 = 133,831.49 : x
  2. Step 2: Convert to fraction form
    453,764.70/680,488.34 = 133,831.49/x
  3. Step 3: Cross multiply
    453,764.70x = 680,488.34 × 133,831.49
  4. Step 4: Simplify right side
    453,764.70x = 91,070,764,398.23
  5. Step 5: Solve for x
    x = 91,070,764,398.23/453,764.70
  6. Step 6: Final answer
    x = 200,700.42

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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.