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Finding the Fourth Proportional to 123,903.10, 185,847.10 and 43,945.03

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Solution

The fourth proportional to 123,903.10, 185,847.10 and 43,945.03 is: 65,914.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,903.10 : 185,847.10 = 43,945.03 : x
  2. Step 2: Convert to fraction form
    123,903.10/185,847.10 = 43,945.03/x
  3. Step 3: Cross multiply
    123,903.10x = 185,847.10 × 43,945.03
  4. Step 4: Simplify right side
    123,903.10x = 8,167,056,384.91
  5. Step 5: Solve for x
    x = 8,167,056,384.91/123,903.10
  6. Step 6: Final answer
    x = 65,914.87

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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.