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Finding the Fourth Proportional to 125,380.30, 188,068.46 and 50,498.68

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Solution

The fourth proportional to 125,380.30, 188,068.46 and 50,498.68 is: 75,747.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,380.30 : 188,068.46 = 50,498.68 : x
  2. Step 2: Convert to fraction form
    125,380.30/188,068.46 = 50,498.68/x
  3. Step 3: Cross multiply
    125,380.30x = 188,068.46 × 50,498.68
  4. Step 4: Simplify right side
    125,380.30x = 9,497,208,979.63
  5. Step 5: Solve for x
    x = 9,497,208,979.63/125,380.30
  6. Step 6: Final answer
    x = 75,747.22

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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.