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Finding the Fourth Proportional to 125,895.80, 188,843.70 and 119,772.20

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Solution

The fourth proportional to 125,895.80, 188,843.70 and 119,772.20 is: 179,658.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,895.80 : 188,843.70 = 119,772.20 : x
  2. Step 2: Convert to fraction form
    125,895.80/188,843.70 = 119,772.20/x
  3. Step 3: Cross multiply
    125,895.80x = 188,843.70 × 119,772.20
  4. Step 4: Simplify right side
    125,895.80x = 22,618,225,405.14
  5. Step 5: Solve for x
    x = 22,618,225,405.14/125,895.80
  6. Step 6: Final answer
    x = 179,658.30

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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.