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Finding the Fourth Proportional to 117,718.45, 176,573.77 and 51,158.64

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Solution

The fourth proportional to 117,718.45, 176,573.77 and 51,158.64 is: 76,736.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,718.45 : 176,573.77 = 51,158.64 : x
  2. Step 2: Convert to fraction form
    117,718.45/176,573.77 = 51,158.64/x
  3. Step 3: Cross multiply
    117,718.45x = 176,573.77 × 51,158.64
  4. Step 4: Simplify right side
    117,718.45x = 9,033,274,275.96
  5. Step 5: Solve for x
    x = 9,033,274,275.96/117,718.45
  6. Step 6: Final answer
    x = 76,736.27

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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.