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Finding the Fourth Proportional to 108,428.63, 162,623.34 and 29,524.39

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Solution

The fourth proportional to 108,428.63, 162,623.34 and 29,524.39 is: 44,281.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,428.63 : 162,623.34 = 29,524.39 : x
  2. Step 2: Convert to fraction form
    108,428.63/162,623.34 = 29,524.39/x
  3. Step 3: Cross multiply
    108,428.63x = 162,623.34 × 29,524.39
  4. Step 4: Simplify right side
    108,428.63x = 4,801,354,506.70
  5. Step 5: Solve for x
    x = 4,801,354,506.70/108,428.63
  6. Step 6: Final answer
    x = 44,281.24

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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.