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Finding the Fourth Proportional to 194,955.53, 268,885.71 and 126,993.87

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Solution

The fourth proportional to 194,955.53, 268,885.71 and 126,993.87 is: 175,151.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,955.53 : 268,885.71 = 126,993.87 : x
  2. Step 2: Convert to fraction form
    194,955.53/268,885.71 = 126,993.87/x
  3. Step 3: Cross multiply
    194,955.53x = 268,885.71 × 126,993.87
  4. Step 4: Simplify right side
    194,955.53x = 34,146,836,900.60
  5. Step 5: Solve for x
    x = 34,146,836,900.60/194,955.53
  6. Step 6: Final answer
    x = 175,151.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.