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Finding the Fourth Proportional to 119,628.88, 165,086.53 and 68,649.63

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Solution

The fourth proportional to 119,628.88, 165,086.53 and 68,649.63 is: 94,735.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,628.88 : 165,086.53 = 68,649.63 : x
  2. Step 2: Convert to fraction form
    119,628.88/165,086.53 = 68,649.63/x
  3. Step 3: Cross multiply
    119,628.88x = 165,086.53 × 68,649.63
  4. Step 4: Simplify right side
    119,628.88x = 11,333,129,202.48
  5. Step 5: Solve for x
    x = 11,333,129,202.48/119,628.88
  6. Step 6: Final answer
    x = 94,735.73

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1.5x scale

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.