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Finding the Fourth Proportional to 119,649.99, 165,118.10 and 65,936.93

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Solution

The fourth proportional to 119,649.99, 165,118.10 and 65,936.93 is: 90,993.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,649.99 : 165,118.10 = 65,936.93 : x
  2. Step 2: Convert to fraction form
    119,649.99/165,118.10 = 65,936.93/x
  3. Step 3: Cross multiply
    119,649.99x = 165,118.10 × 65,936.93
  4. Step 4: Simplify right side
    119,649.99x = 10,887,380,684.54
  5. Step 5: Solve for x
    x = 10,887,380,684.54/119,649.99
  6. Step 6: Final answer
    x = 90,993.58

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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.