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Finding the Fourth Proportional to 141,067.56, 194,674.55 and 77,407.64

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Solution

The fourth proportional to 141,067.56, 194,674.55 and 77,407.64 is: 106,823.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,067.56 : 194,674.55 = 77,407.64 : x
  2. Step 2: Convert to fraction form
    141,067.56/194,674.55 = 77,407.64/x
  3. Step 3: Cross multiply
    141,067.56x = 194,674.55 × 77,407.64
  4. Step 4: Simplify right side
    141,067.56x = 15,069,296,123.15
  5. Step 5: Solve for x
    x = 15,069,296,123.15/141,067.56
  6. Step 6: Final answer
    x = 106,823.26

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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.