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Finding the Fourth Proportional to 120,068.84, 179,942.26 and 93,446.97

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Solution

The fourth proportional to 120,068.84, 179,942.26 and 93,446.97 is: 140,045.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,068.84 : 179,942.26 = 93,446.97 : x
  2. Step 2: Convert to fraction form
    120,068.84/179,942.26 = 93,446.97/x
  3. Step 3: Cross multiply
    120,068.84x = 179,942.26 × 93,446.97
  4. Step 4: Simplify right side
    120,068.84x = 16,815,058,971.95
  5. Step 5: Solve for x
    x = 16,815,058,971.95/120,068.84
  6. Step 6: Final answer
    x = 140,045.15

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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.