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Finding the Fourth Proportional to 96,649.52, 133,073.21 and 87,792.17

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Solution

The fourth proportional to 96,649.52, 133,073.21 and 87,792.17 is: 120,877.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,649.52 : 133,073.21 = 87,792.17 : x
  2. Step 2: Convert to fraction form
    96,649.52/133,073.21 = 87,792.17/x
  3. Step 3: Cross multiply
    96,649.52x = 133,073.21 × 87,792.17
  4. Step 4: Simplify right side
    96,649.52x = 11,682,785,428.88
  5. Step 5: Solve for x
    x = 11,682,785,428.88/96,649.52
  6. Step 6: Final answer
    x = 120,877.85

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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.