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Finding the Fourth Proportional to 193,642.76, 290,513.41 and 113,748.29

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Solution

The fourth proportional to 193,642.76, 290,513.41 and 113,748.29 is: 170,651.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,642.76 : 290,513.41 = 113,748.29 : x
  2. Step 2: Convert to fraction form
    193,642.76/290,513.41 = 113,748.29/x
  3. Step 3: Cross multiply
    193,642.76x = 290,513.41 × 113,748.29
  4. Step 4: Simplify right side
    193,642.76x = 33,045,403,609.57
  5. Step 5: Solve for x
    x = 33,045,403,609.57/193,642.76
  6. Step 6: Final answer
    x = 170,651.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.