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Finding the Fourth Proportional to 88,638.60, 132,929.10 and 29,464.20

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Solution

The fourth proportional to 88,638.60, 132,929.10 and 29,464.20 is: 44,186.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,638.60 : 132,929.10 = 29,464.20 : x
  2. Step 2: Convert to fraction form
    88,638.60/132,929.10 = 29,464.20/x
  3. Step 3: Cross multiply
    88,638.60x = 132,929.10 × 29,464.20
  4. Step 4: Simplify right side
    88,638.60x = 3,916,649,588.22
  5. Step 5: Solve for x
    x = 3,916,649,588.22/88,638.60
  6. Step 6: Final answer
    x = 44,186.73

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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.