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Finding the Fourth Proportional to 117,649.53, 162,353.61 and 65,963.20

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Solution

The fourth proportional to 117,649.53, 162,353.61 and 65,963.20 is: 91,027.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,649.53 : 162,353.61 = 65,963.20 : x
  2. Step 2: Convert to fraction form
    117,649.53/162,353.61 = 65,963.20/x
  3. Step 3: Cross multiply
    117,649.53x = 162,353.61 × 65,963.20
  4. Step 4: Simplify right side
    117,649.53x = 10,709,363,647.15
  5. Step 5: Solve for x
    x = 10,709,363,647.15/117,649.53
  6. Step 6: Final answer
    x = 91,027.68

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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.