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Finding the Fourth Proportional to 141,449.78, 194,004.76 and 125,506.56

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Solution

The fourth proportional to 141,449.78, 194,004.76 and 125,506.56 is: 172,137.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,449.78 : 194,004.76 = 125,506.56 : x
  2. Step 2: Convert to fraction form
    141,449.78/194,004.76 = 125,506.56/x
  3. Step 3: Cross multiply
    141,449.78x = 194,004.76 × 125,506.56
  4. Step 4: Simplify right side
    141,449.78x = 24,348,870,051.23
  5. Step 5: Solve for x
    x = 24,348,870,051.23/141,449.78
  6. Step 6: Final answer
    x = 172,137.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.