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Finding the Fourth Proportional to 82,754.40, 124,160.40 and 36,021.60

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Solution

The fourth proportional to 82,754.40, 124,160.40 and 36,021.60 is: 54,044.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,754.40 : 124,160.40 = 36,021.60 : x
  2. Step 2: Convert to fraction form
    82,754.40/124,160.40 = 36,021.60/x
  3. Step 3: Cross multiply
    82,754.40x = 124,160.40 × 36,021.60
  4. Step 4: Simplify right side
    82,754.40x = 4,472,456,264.64
  5. Step 5: Solve for x
    x = 4,472,456,264.64/82,754.40
  6. Step 6: Final answer
    x = 54,044.94

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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.