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Finding the Fourth Proportional to 193,347.54, 290,016.92 and 113,889.58

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Solution

The fourth proportional to 193,347.54, 290,016.92 and 113,889.58 is: 170,831.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,347.54 : 290,016.92 = 113,889.58 : x
  2. Step 2: Convert to fraction form
    193,347.54/290,016.92 = 113,889.58/x
  3. Step 3: Cross multiply
    193,347.54x = 290,016.92 × 113,889.58
  4. Step 4: Simplify right side
    193,347.54x = 33,029,904,771.38
  5. Step 5: Solve for x
    x = 33,029,904,771.38/193,347.54
  6. Step 6: Final answer
    x = 170,831.78

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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.