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Finding the Fourth Proportional to 117,584.40, 162,201.84 and 74,484.96

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Solution

The fourth proportional to 117,584.40, 162,201.84 and 74,484.96 is: 102,748.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,584.40 : 162,201.84 = 74,484.96 : x
  2. Step 2: Convert to fraction form
    117,584.40/162,201.84 = 74,484.96/x
  3. Step 3: Cross multiply
    117,584.40x = 162,201.84 × 74,484.96
  4. Step 4: Simplify right side
    117,584.40x = 12,081,597,564.33
  5. Step 5: Solve for x
    x = 12,081,597,564.33/117,584.40
  6. Step 6: Final answer
    x = 102,748.30

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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.