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Finding the Fourth Proportional to 72,865.01, 100,563.29 and 41,040.06

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Solution

The fourth proportional to 72,865.01, 100,563.29 and 41,040.06 is: 56,640.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,865.01 : 100,563.29 = 41,040.06 : x
  2. Step 2: Convert to fraction form
    72,865.01/100,563.29 = 41,040.06/x
  3. Step 3: Cross multiply
    72,865.01x = 100,563.29 × 41,040.06
  4. Step 4: Simplify right side
    72,865.01x = 4,127,123,455.40
  5. Step 5: Solve for x
    x = 4,127,123,455.40/72,865.01
  6. Step 6: Final answer
    x = 56,640.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.