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Finding the Fourth Proportional to 125,659.65, 173,450.73 and 80,459.37

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Solution

The fourth proportional to 125,659.65, 173,450.73 and 80,459.37 is: 111,059.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,659.65 : 173,450.73 = 80,459.37 : x
  2. Step 2: Convert to fraction form
    125,659.65/173,450.73 = 80,459.37/x
  3. Step 3: Cross multiply
    125,659.65x = 173,450.73 × 80,459.37
  4. Step 4: Simplify right side
    125,659.65x = 13,955,736,461.84
  5. Step 5: Solve for x
    x = 13,955,736,461.84/125,659.65
  6. Step 6: Final answer
    x = 111,059.81

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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.