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Finding the Fourth Proportional to 125,889.33, 188,764.98 and 49,910.90

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Solution

The fourth proportional to 125,889.33, 188,764.98 and 49,910.90 is: 74,838.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,889.33 : 188,764.98 = 49,910.90 : x
  2. Step 2: Convert to fraction form
    125,889.33/188,764.98 = 49,910.90/x
  3. Step 3: Cross multiply
    125,889.33x = 188,764.98 × 49,910.90
  4. Step 4: Simplify right side
    125,889.33x = 9,421,430,040.28
  5. Step 5: Solve for x
    x = 9,421,430,040.28/125,889.33
  6. Step 6: Final answer
    x = 74,838.99

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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.