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Finding the Fourth Proportional to 125,459.56, 173,091.96 and 80,164.02

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Solution

The fourth proportional to 125,459.56, 173,091.96 and 80,164.02 is: 110,599.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,459.56 : 173,091.96 = 80,164.02 : x
  2. Step 2: Convert to fraction form
    125,459.56/173,091.96 = 80,164.02/x
  3. Step 3: Cross multiply
    125,459.56x = 173,091.96 × 80,164.02
  4. Step 4: Simplify right side
    125,459.56x = 13,875,747,343.28
  5. Step 5: Solve for x
    x = 13,875,747,343.28/125,459.56
  6. Step 6: Final answer
    x = 110,599.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.