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Finding the Fourth Proportional to 74,178.64, 111,414.30 and 63,733.96

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Solution

The fourth proportional to 74,178.64, 111,414.30 and 63,733.96 is: 95,726.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,178.64 : 111,414.30 = 63,733.96 : x
  2. Step 2: Convert to fraction form
    74,178.64/111,414.30 = 63,733.96/x
  3. Step 3: Cross multiply
    74,178.64x = 111,414.30 × 63,733.96
  4. Step 4: Simplify right side
    74,178.64x = 7,100,874,539.63
  5. Step 5: Solve for x
    x = 7,100,874,539.63/74,178.64
  6. Step 6: Final answer
    x = 95,726.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.