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Finding the Fourth Proportional to 134,761.72, 202,101.54 and 55,857.40

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Solution

The fourth proportional to 134,761.72, 202,101.54 and 55,857.40 is: 83,769.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,761.72 : 202,101.54 = 55,857.40 : x
  2. Step 2: Convert to fraction form
    134,761.72/202,101.54 = 55,857.40/x
  3. Step 3: Cross multiply
    134,761.72x = 202,101.54 × 55,857.40
  4. Step 4: Simplify right side
    134,761.72x = 11,288,866,560.40
  5. Step 5: Solve for x
    x = 11,288,866,560.40/134,761.72
  6. Step 6: Final answer
    x = 83,769.09

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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.