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Finding the Fourth Proportional to 117,396.78, 176,122.82 and 93,471.58

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Solution

The fourth proportional to 117,396.78, 176,122.82 and 93,471.58 is: 140,229.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,396.78 : 176,122.82 = 93,471.58 : x
  2. Step 2: Convert to fraction form
    117,396.78/176,122.82 = 93,471.58/x
  3. Step 3: Cross multiply
    117,396.78x = 176,122.82 × 93,471.58
  4. Step 4: Simplify right side
    117,396.78x = 16,462,478,259.46
  5. Step 5: Solve for x
    x = 16,462,478,259.46/117,396.78
  6. Step 6: Final answer
    x = 140,229.38

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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.