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Finding the Fourth Proportional to 117,305.80, 175,958.70 and 28,558.60

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Solution

The fourth proportional to 117,305.80, 175,958.70 and 28,558.60 is: 42,837.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,305.80 : 175,958.70 = 28,558.60 : x
  2. Step 2: Convert to fraction form
    117,305.80/175,958.70 = 28,558.60/x
  3. Step 3: Cross multiply
    117,305.80x = 175,958.70 × 28,558.60
  4. Step 4: Simplify right side
    117,305.80x = 5,025,134,129.82
  5. Step 5: Solve for x
    x = 5,025,134,129.82/117,305.80
  6. Step 6: Final answer
    x = 42,837.90

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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.