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Finding the Fourth Proportional to 230,872.80, 346,406.40 and 125,767.20

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Solution

The fourth proportional to 230,872.80, 346,406.40 and 125,767.20 is: 188,703.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,872.80 : 346,406.40 = 125,767.20 : x
  2. Step 2: Convert to fraction form
    230,872.80/346,406.40 = 125,767.20/x
  3. Step 3: Cross multiply
    230,872.80x = 346,406.40 × 125,767.20
  4. Step 4: Simplify right side
    230,872.80x = 43,566,562,990.08
  5. Step 5: Solve for x
    x = 43,566,562,990.08/230,872.80
  6. Step 6: Final answer
    x = 188,703.75

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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.