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Finding the Fourth Proportional to 108,509.60, 162,558.66 and 64,003.88

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Solution

The fourth proportional to 108,509.60, 162,558.66 and 64,003.88 is: 95,884.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,509.60 : 162,558.66 = 64,003.88 : x
  2. Step 2: Convert to fraction form
    108,509.60/162,558.66 = 64,003.88/x
  3. Step 3: Cross multiply
    108,509.60x = 162,558.66 × 64,003.88
  4. Step 4: Simplify right side
    108,509.60x = 10,404,384,967.60
  5. Step 5: Solve for x
    x = 10,404,384,967.60/108,509.60
  6. Step 6: Final answer
    x = 95,884.47

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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.