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Finding the Fourth Proportional to 74,563.28, 111,763.81 and 37,151

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Solution

The fourth proportional to 74,563.28, 111,763.81 and 37,151 is: 55,686.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,563.28 : 111,763.81 = 37,151 : x
  2. Step 2: Convert to fraction form
    74,563.28/111,763.81 = 37,151/x
  3. Step 3: Cross multiply
    74,563.28x = 111,763.81 × 37,151
  4. Step 4: Simplify right side
    74,563.28x = 4,152,137,305.31
  5. Step 5: Solve for x
    x = 4,152,137,305.31/74,563.28
  6. Step 6: Final answer
    x = 55,686.09

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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.