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Finding the Fourth Proportional to 125,614.68, 188,449.70 and 69,536.58

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Solution

The fourth proportional to 125,614.68, 188,449.70 and 69,536.58 is: 104,320.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,614.68 : 188,449.70 = 69,536.58 : x
  2. Step 2: Convert to fraction form
    125,614.68/188,449.70 = 69,536.58/x
  3. Step 3: Cross multiply
    125,614.68x = 188,449.70 × 69,536.58
  4. Step 4: Simplify right side
    125,614.68x = 13,104,147,640.03
  5. Step 5: Solve for x
    x = 13,104,147,640.03/125,614.68
  6. Step 6: Final answer
    x = 104,320.19

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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.