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Finding the Fourth Proportional to 112,413, 168,629.22 and 29,307

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Solution

The fourth proportional to 112,413, 168,629.22 and 29,307 is: 43,963.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,413 : 168,629.22 = 29,307 : x
  2. Step 2: Convert to fraction form
    112,413/168,629.22 = 29,307/x
  3. Step 3: Cross multiply
    112,413x = 168,629.22 × 29,307
  4. Step 4: Simplify right side
    112,413x = 4,942,016,550.54
  5. Step 5: Solve for x
    x = 4,942,016,550.54/112,413
  6. Step 6: Final answer
    x = 43,963.03

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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.