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Finding the Fourth Proportional to 210,375.44, 315,446.52 and 70,057.52

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Solution

The fourth proportional to 210,375.44, 315,446.52 and 70,057.52 is: 105,047.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,375.44 : 315,446.52 = 70,057.52 : x
  2. Step 2: Convert to fraction form
    210,375.44/315,446.52 = 70,057.52/x
  3. Step 3: Cross multiply
    210,375.44x = 315,446.52 × 70,057.52
  4. Step 4: Simplify right side
    210,375.44x = 22,099,400,883.83
  5. Step 5: Solve for x
    x = 22,099,400,883.83/210,375.44
  6. Step 6: Final answer
    x = 105,047.44

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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.