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Finding the Fourth Proportional to 116,934.30, 175,401.45 and 81,504.90

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Solution

The fourth proportional to 116,934.30, 175,401.45 and 81,504.90 is: 122,257.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,934.30 : 175,401.45 = 81,504.90 : x
  2. Step 2: Convert to fraction form
    116,934.30/175,401.45 = 81,504.90/x
  3. Step 3: Cross multiply
    116,934.30x = 175,401.45 × 81,504.90
  4. Step 4: Simplify right side
    116,934.30x = 14,296,077,642.11
  5. Step 5: Solve for x
    x = 14,296,077,642.11/116,934.30
  6. Step 6: Final answer
    x = 122,257.35

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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.