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Finding the Fourth Proportional to 92,078.82, 137,446.02 and 79,015.14

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Solution

The fourth proportional to 92,078.82, 137,446.02 and 79,015.14 is: 117,945.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,078.82 : 137,446.02 = 79,015.14 : x
  2. Step 2: Convert to fraction form
    92,078.82/137,446.02 = 79,015.14/x
  3. Step 3: Cross multiply
    92,078.82x = 137,446.02 × 79,015.14
  4. Step 4: Simplify right side
    92,078.82x = 10,860,316,512.74
  5. Step 5: Solve for x
    x = 10,860,316,512.74/92,078.82
  6. Step 6: Final answer
    x = 117,945.87

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.