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Finding the Fourth Proportional to 141,055.71, 194,670.57 and 80,614.82

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Solution

The fourth proportional to 141,055.71, 194,670.57 and 80,614.82 is: 111,256.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,055.71 : 194,670.57 = 80,614.82 : x
  2. Step 2: Convert to fraction form
    141,055.71/194,670.57 = 80,614.82/x
  3. Step 3: Cross multiply
    141,055.71x = 194,670.57 × 80,614.82
  4. Step 4: Simplify right side
    141,055.71x = 15,693,331,986.49
  5. Step 5: Solve for x
    x = 15,693,331,986.49/141,055.71
  6. Step 6: Final answer
    x = 111,256.27

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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.