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Finding the Fourth Proportional to 141,052.71, 194,666.42 and 80,611.81

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Solution

The fourth proportional to 141,052.71, 194,666.42 and 80,611.81 is: 111,252.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,052.71 : 194,666.42 = 80,611.81 : x
  2. Step 2: Convert to fraction form
    141,052.71/194,666.42 = 80,611.81/x
  3. Step 3: Cross multiply
    141,052.71x = 194,666.42 × 80,611.81
  4. Step 4: Simplify right side
    141,052.71x = 15,692,412,177.28
  5. Step 5: Solve for x
    x = 15,692,412,177.28/141,052.71
  6. Step 6: Final answer
    x = 111,252.11

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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.