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Finding the Fourth Proportional to 125,659.30, 173,407.89 and 69,069.46

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Solution

The fourth proportional to 125,659.30, 173,407.89 and 69,069.46 is: 95,314.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,659.30 : 173,407.89 = 69,069.46 : x
  2. Step 2: Convert to fraction form
    125,659.30/173,407.89 = 69,069.46/x
  3. Step 3: Cross multiply
    125,659.30x = 173,407.89 × 69,069.46
  4. Step 4: Simplify right side
    125,659.30x = 11,977,189,322.04
  5. Step 5: Solve for x
    x = 11,977,189,322.04/125,659.30
  6. Step 6: Final answer
    x = 95,314.79

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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.