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Finding the Fourth Proportional to 108,615.46, 162,821.04 and 58,620.64

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Solution

The fourth proportional to 108,615.46, 162,821.04 and 58,620.64 is: 87,875.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,615.46 : 162,821.04 = 58,620.64 : x
  2. Step 2: Convert to fraction form
    108,615.46/162,821.04 = 58,620.64/x
  3. Step 3: Cross multiply
    108,615.46x = 162,821.04 × 58,620.64
  4. Step 4: Simplify right side
    108,615.46x = 9,544,673,570.27
  5. Step 5: Solve for x
    x = 9,544,673,570.27/108,615.46
  6. Step 6: Final answer
    x = 87,875.83

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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.