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Finding the Fourth Proportional to 168,120, 232,005.60 and 101,052

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Solution

The fourth proportional to 168,120, 232,005.60 and 101,052 is: 139,451.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,120 : 232,005.60 = 101,052 : x
  2. Step 2: Convert to fraction form
    168,120/232,005.60 = 101,052/x
  3. Step 3: Cross multiply
    168,120x = 232,005.60 × 101,052
  4. Step 4: Simplify right side
    168,120x = 23,444,629,891.20
  5. Step 5: Solve for x
    x = 23,444,629,891.20/168,120
  6. Step 6: Final answer
    x = 139,451.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.