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Finding the Fourth Proportional to 117,960.03, 162,893.03 and 74,953.69

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Solution

The fourth proportional to 117,960.03, 162,893.03 and 74,953.69 is: 103,504.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,960.03 : 162,893.03 = 74,953.69 : x
  2. Step 2: Convert to fraction form
    117,960.03/162,893.03 = 74,953.69/x
  3. Step 3: Cross multiply
    117,960.03x = 162,893.03 × 74,953.69
  4. Step 4: Simplify right side
    117,960.03x = 12,209,432,891.78
  5. Step 5: Solve for x
    x = 12,209,432,891.78/117,960.03
  6. Step 6: Final answer
    x = 103,504.83

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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.