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Finding the Fourth Proportional to 117,772.88, 176,559.48 and 51,162.80

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Solution

The fourth proportional to 117,772.88, 176,559.48 and 51,162.80 is: 76,700.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,772.88 : 176,559.48 = 51,162.80 : x
  2. Step 2: Convert to fraction form
    117,772.88/176,559.48 = 51,162.80/x
  3. Step 3: Cross multiply
    117,772.88x = 176,559.48 × 51,162.80
  4. Step 4: Simplify right side
    117,772.88x = 9,033,277,363.34
  5. Step 5: Solve for x
    x = 9,033,277,363.34/117,772.88
  6. Step 6: Final answer
    x = 76,700.83

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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.