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Finding the Fourth Proportional to 108,473.88, 162,760.32 and 64,187.40

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Solution

The fourth proportional to 108,473.88, 162,760.32 and 64,187.40 is: 96,310.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,473.88 : 162,760.32 = 64,187.40 : x
  2. Step 2: Convert to fraction form
    108,473.88/162,760.32 = 64,187.40/x
  3. Step 3: Cross multiply
    108,473.88x = 162,760.32 × 64,187.40
  4. Step 4: Simplify right side
    108,473.88x = 10,447,161,763.97
  5. Step 5: Solve for x
    x = 10,447,161,763.97/108,473.88
  6. Step 6: Final answer
    x = 96,310.39

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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.