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Finding the Fourth Proportional to 108,302.52, 162,453.80 and 29,428.40

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Solution

The fourth proportional to 108,302.52, 162,453.80 and 29,428.40 is: 44,142.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,302.52 : 162,453.80 = 29,428.40 : x
  2. Step 2: Convert to fraction form
    108,302.52/162,453.80 = 29,428.40/x
  3. Step 3: Cross multiply
    108,302.52x = 162,453.80 × 29,428.40
  4. Step 4: Simplify right side
    108,302.52x = 4,780,755,407.92
  5. Step 5: Solve for x
    x = 4,780,755,407.92/108,302.52
  6. Step 6: Final answer
    x = 44,142.61

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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.