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Finding the Fourth Proportional to 116,351.40, 173,738.91 and 92,390.04

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Solution

The fourth proportional to 116,351.40, 173,738.91 and 92,390.04 is: 137,959.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,351.40 : 173,738.91 = 92,390.04 : x
  2. Step 2: Convert to fraction form
    116,351.40/173,738.91 = 92,390.04/x
  3. Step 3: Cross multiply
    116,351.40x = 173,738.91 × 92,390.04
  4. Step 4: Simplify right side
    116,351.40x = 16,051,744,844.46
  5. Step 5: Solve for x
    x = 16,051,744,844.46/116,351.40
  6. Step 6: Final answer
    x = 137,959.19

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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.