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Finding the Fourth Proportional to 193,497.54, 290,358.39 and 81,167.76

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Solution

The fourth proportional to 193,497.54, 290,358.39 and 81,167.76 is: 121,798.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,497.54 : 290,358.39 = 81,167.76 : x
  2. Step 2: Convert to fraction form
    193,497.54/290,358.39 = 81,167.76/x
  3. Step 3: Cross multiply
    193,497.54x = 290,358.39 × 81,167.76
  4. Step 4: Simplify right side
    193,497.54x = 23,567,740,113.51
  5. Step 5: Solve for x
    x = 23,567,740,113.51/193,497.54
  6. Step 6: Final answer
    x = 121,798.65

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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.