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Finding the Fourth Proportional to 101,930.01, 152,834.64 and 30,831.09

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Solution

The fourth proportional to 101,930.01, 152,834.64 and 30,831.09 is: 46,228.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,930.01 : 152,834.64 = 30,831.09 : x
  2. Step 2: Convert to fraction form
    101,930.01/152,834.64 = 30,831.09/x
  3. Step 3: Cross multiply
    101,930.01x = 152,834.64 × 30,831.09
  4. Step 4: Simplify right side
    101,930.01x = 4,712,058,540.96
  5. Step 5: Solve for x
    x = 4,712,058,540.96/101,930.01
  6. Step 6: Final answer
    x = 46,228.37

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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.