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Finding the Fourth Proportional to 87,572.54, 120,827.85 and 53,568.58

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Solution

The fourth proportional to 87,572.54, 120,827.85 and 53,568.58 is: 73,911.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,572.54 : 120,827.85 = 53,568.58 : x
  2. Step 2: Convert to fraction form
    87,572.54/120,827.85 = 53,568.58/x
  3. Step 3: Cross multiply
    87,572.54x = 120,827.85 × 53,568.58
  4. Step 4: Simplify right side
    87,572.54x = 6,472,576,348.95
  5. Step 5: Solve for x
    x = 6,472,576,348.95/87,572.54
  6. Step 6: Final answer
    x = 73,911.03

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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.