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Finding the Fourth Proportional to 453,763.17, 680,486.01 and 133,830.15

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Solution

The fourth proportional to 453,763.17, 680,486.01 and 133,830.15 is: 200,698.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,763.17 : 680,486.01 = 133,830.15 : x
  2. Step 2: Convert to fraction form
    453,763.17/680,486.01 = 133,830.15/x
  3. Step 3: Cross multiply
    453,763.17x = 680,486.01 × 133,830.15
  4. Step 4: Simplify right side
    453,763.17x = 91,069,544,791.20
  5. Step 5: Solve for x
    x = 91,069,544,791.20/453,763.17
  6. Step 6: Final answer
    x = 200,698.41

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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.