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Finding the Fourth Proportional to 141,147.74, 194,758.75 and 79,893.63

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Solution

The fourth proportional to 141,147.74, 194,758.75 and 79,893.63 is: 110,238.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,147.74 : 194,758.75 = 79,893.63 : x
  2. Step 2: Convert to fraction form
    141,147.74/194,758.75 = 79,893.63/x
  3. Step 3: Cross multiply
    141,147.74x = 194,758.75 × 79,893.63
  4. Step 4: Simplify right side
    141,147.74x = 15,559,983,162.23
  5. Step 5: Solve for x
    x = 15,559,983,162.23/141,147.74
  6. Step 6: Final answer
    x = 110,238.98

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1.5x scale

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.