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Finding the Fourth Proportional to 210,375.52, 315,563.24 and 52,603.97

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Solution

The fourth proportional to 210,375.52, 315,563.24 and 52,603.97 is: 78,905.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,375.52 : 315,563.24 = 52,603.97 : x
  2. Step 2: Convert to fraction form
    210,375.52/315,563.24 = 52,603.97/x
  3. Step 3: Cross multiply
    210,375.52x = 315,563.24 × 52,603.97
  4. Step 4: Simplify right side
    210,375.52x = 16,599,877,763.76
  5. Step 5: Solve for x
    x = 16,599,877,763.76/210,375.52
  6. Step 6: Final answer
    x = 78,905.94

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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.