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Finding the Fourth Proportional to 60,105, 90,178.28 and 22,675.80

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Solution

The fourth proportional to 60,105, 90,178.28 and 22,675.80 is: 34,021.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,105 : 90,178.28 = 22,675.80 : x
  2. Step 2: Convert to fraction form
    60,105/90,178.28 = 22,675.80/x
  3. Step 3: Cross multiply
    60,105x = 90,178.28 × 22,675.80
  4. Step 4: Simplify right side
    60,105x = 2,044,864,641.62
  5. Step 5: Solve for x
    x = 2,044,864,641.62/60,105
  6. Step 6: Final answer
    x = 34,021.54

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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.