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Finding the Fourth Proportional to 125,964.45, 188,946.68 and 125,964.45

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Solution

The fourth proportional to 125,964.45, 188,946.68 and 125,964.45 is: 188,946.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,964.45 : 188,946.68 = 125,964.45 : x
  2. Step 2: Convert to fraction form
    125,964.45/188,946.68 = 125,964.45/x
  3. Step 3: Cross multiply
    125,964.45x = 188,946.68 × 125,964.45
  4. Step 4: Simplify right side
    125,964.45x = 23,800,563,995.70
  5. Step 5: Solve for x
    x = 23,800,563,995.70/125,964.45
  6. Step 6: Final answer
    x = 188,946.68

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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.