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Finding the Fourth Proportional to 108,080.60, 161,732.10 and 73,088.60

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Solution

The fourth proportional to 108,080.60, 161,732.10 and 73,088.60 is: 109,369.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,080.60 : 161,732.10 = 73,088.60 : x
  2. Step 2: Convert to fraction form
    108,080.60/161,732.10 = 73,088.60/x
  3. Step 3: Cross multiply
    108,080.60x = 161,732.10 × 73,088.60
  4. Step 4: Simplify right side
    108,080.60x = 11,820,772,764.06
  5. Step 5: Solve for x
    x = 11,820,772,764.06/108,080.60
  6. Step 6: Final answer
    x = 109,369.98

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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.