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Finding the Fourth Proportional to 117,174.58, 175,761.87 and 28,426.66

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Solution

The fourth proportional to 117,174.58, 175,761.87 and 28,426.66 is: 42,639.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,174.58 : 175,761.87 = 28,426.66 : x
  2. Step 2: Convert to fraction form
    117,174.58/175,761.87 = 28,426.66/x
  3. Step 3: Cross multiply
    117,174.58x = 175,761.87 × 28,426.66
  4. Step 4: Simplify right side
    117,174.58x = 4,996,322,919.45
  5. Step 5: Solve for x
    x = 4,996,322,919.45/117,174.58
  6. Step 6: Final answer
    x = 42,639.99

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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.