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Finding the Fourth Proportional to 445,197.83, 667,804.08 and 125,357.42

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Solution

The fourth proportional to 445,197.83, 667,804.08 and 125,357.42 is: 188,038.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,197.83 : 667,804.08 = 125,357.42 : x
  2. Step 2: Convert to fraction form
    445,197.83/667,804.08 = 125,357.42/x
  3. Step 3: Cross multiply
    445,197.83x = 667,804.08 × 125,357.42
  4. Step 4: Simplify right side
    445,197.83x = 83,714,193,195.25
  5. Step 5: Solve for x
    x = 83,714,193,195.25/445,197.83
  6. Step 6: Final answer
    x = 188,038.19

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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.