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Finding the Fourth Proportional to 117,604.53, 176,756.72 and 55,318.77

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Solution

The fourth proportional to 117,604.53, 176,756.72 and 55,318.77 is: 83,142.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,604.53 : 176,756.72 = 55,318.77 : x
  2. Step 2: Convert to fraction form
    117,604.53/176,756.72 = 55,318.77/x
  3. Step 3: Cross multiply
    117,604.53x = 176,756.72 × 55,318.77
  4. Step 4: Simplify right side
    117,604.53x = 9,777,964,063.04
  5. Step 5: Solve for x
    x = 9,777,964,063.04/117,604.53
  6. Step 6: Final answer
    x = 83,142.75

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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.