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Finding the Fourth Proportional to 118,296.88, 163,247.16 and 64,583.44

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Solution

The fourth proportional to 118,296.88, 163,247.16 and 64,583.44 is: 89,123.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,296.88 : 163,247.16 = 64,583.44 : x
  2. Step 2: Convert to fraction form
    118,296.88/163,247.16 = 64,583.44/x
  3. Step 3: Cross multiply
    118,296.88x = 163,247.16 × 64,583.44
  4. Step 4: Simplify right side
    118,296.88x = 10,543,063,163.03
  5. Step 5: Solve for x
    x = 10,543,063,163.03/118,296.88
  6. Step 6: Final answer
    x = 89,123.76

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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.