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Finding the Fourth Proportional to 117,379.28, 176,068.92 and 50,764.88

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Solution

The fourth proportional to 117,379.28, 176,068.92 and 50,764.88 is: 76,147.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,379.28 : 176,068.92 = 50,764.88 : x
  2. Step 2: Convert to fraction form
    117,379.28/176,068.92 = 50,764.88/x
  3. Step 3: Cross multiply
    117,379.28x = 176,068.92 × 50,764.88
  4. Step 4: Simplify right side
    117,379.28x = 8,938,117,595.53
  5. Step 5: Solve for x
    x = 8,938,117,595.53/117,379.28
  6. Step 6: Final answer
    x = 76,147.32

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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.