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Finding the Fourth Proportional to 230,941.80, 346,239.90 and 125,879.40

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Solution

The fourth proportional to 230,941.80, 346,239.90 and 125,879.40 is: 188,724.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,941.80 : 346,239.90 = 125,879.40 : x
  2. Step 2: Convert to fraction form
    230,941.80/346,239.90 = 125,879.40/x
  3. Step 3: Cross multiply
    230,941.80x = 346,239.90 × 125,879.40
  4. Step 4: Simplify right side
    230,941.80x = 43,584,470,868.06
  5. Step 5: Solve for x
    x = 43,584,470,868.06/230,941.80
  6. Step 6: Final answer
    x = 188,724.91

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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.