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Finding the Fourth Proportional to 108,290.52, 162,435.78 and 29,416.37

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Solution

The fourth proportional to 108,290.52, 162,435.78 and 29,416.37 is: 44,124.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,290.52 : 162,435.78 = 29,416.37 : x
  2. Step 2: Convert to fraction form
    108,290.52/162,435.78 = 29,416.37/x
  3. Step 3: Cross multiply
    108,290.52x = 162,435.78 × 29,416.37
  4. Step 4: Simplify right side
    108,290.52x = 4,778,270,193.54
  5. Step 5: Solve for x
    x = 4,778,270,193.54/108,290.52
  6. Step 6: Final answer
    x = 44,124.55

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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.