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Finding the Fourth Proportional to 453,834.60, 680,751.90 and 121,410.60

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Solution

The fourth proportional to 453,834.60, 680,751.90 and 121,410.60 is: 182,115.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,834.60 : 680,751.90 = 121,410.60 : x
  2. Step 2: Convert to fraction form
    453,834.60/680,751.90 = 121,410.60/x
  3. Step 3: Cross multiply
    453,834.60x = 680,751.90 × 121,410.60
  4. Step 4: Simplify right side
    453,834.60x = 82,650,496,630.14
  5. Step 5: Solve for x
    x = 82,650,496,630.14/453,834.60
  6. Step 6: Final answer
    x = 182,115.90

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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.