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Finding the Fourth Proportional to 117,395.78, 176,121.32 and 93,470.58

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Solution

The fourth proportional to 117,395.78, 176,121.32 and 93,470.58 is: 140,227.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,395.78 : 176,121.32 = 93,470.58 : x
  2. Step 2: Convert to fraction form
    117,395.78/176,121.32 = 93,470.58/x
  3. Step 3: Cross multiply
    117,395.78x = 176,121.32 × 93,470.58
  4. Step 4: Simplify right side
    117,395.78x = 16,462,161,930.77
  5. Step 5: Solve for x
    x = 16,462,161,930.77/117,395.78
  6. Step 6: Final answer
    x = 140,227.88

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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.