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Finding the Fourth Proportional to 193,536.65, 290,305.00 and 60,428.31

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Solution

The fourth proportional to 193,536.65, 290,305.00 and 60,428.31 is: 90,642.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,536.65 : 290,305.00 = 60,428.31 : x
  2. Step 2: Convert to fraction form
    193,536.65/290,305.00 = 60,428.31/x
  3. Step 3: Cross multiply
    193,536.65x = 290,305.00 × 60,428.31
  4. Step 4: Simplify right side
    193,536.65x = 17,542,638,780.88
  5. Step 5: Solve for x
    x = 17,542,638,780.88/193,536.65
  6. Step 6: Final answer
    x = 90,642.46

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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.