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Finding the Fourth Proportional to 193,497.48, 290,358.20 and 81,167.64

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Solution

The fourth proportional to 193,497.48, 290,358.20 and 81,167.64 is: 121,798.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,497.48 : 290,358.20 = 81,167.64 : x
  2. Step 2: Convert to fraction form
    193,497.48/290,358.20 = 81,167.64/x
  3. Step 3: Cross multiply
    193,497.48x = 290,358.20 × 81,167.64
  4. Step 4: Simplify right side
    193,497.48x = 23,567,689,848.65
  5. Step 5: Solve for x
    x = 23,567,689,848.65/193,497.48
  6. Step 6: Final answer
    x = 121,798.43

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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.