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Finding the Fourth Proportional to 117,108.99, 175,838.45 and 115,359.39

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Solution

The fourth proportional to 117,108.99, 175,838.45 and 115,359.39 is: 173,211.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,108.99 : 175,838.45 = 115,359.39 : x
  2. Step 2: Convert to fraction form
    117,108.99/175,838.45 = 115,359.39/x
  3. Step 3: Cross multiply
    117,108.99x = 175,838.45 × 115,359.39
  4. Step 4: Simplify right side
    117,108.99x = 20,284,615,753.75
  5. Step 5: Solve for x
    x = 20,284,615,753.75/117,108.99
  6. Step 6: Final answer
    x = 173,211.43

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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.