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Finding the Fourth Proportional to 133,076.69, 199,649.60 and 66,514.13

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Solution

The fourth proportional to 133,076.69, 199,649.60 and 66,514.13 is: 99,788.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,076.69 : 199,649.60 = 66,514.13 : x
  2. Step 2: Convert to fraction form
    133,076.69/199,649.60 = 66,514.13/x
  3. Step 3: Cross multiply
    133,076.69x = 199,649.60 × 66,514.13
  4. Step 4: Simplify right side
    133,076.69x = 13,279,519,448.85
  5. Step 5: Solve for x
    x = 13,279,519,448.85/133,076.69
  6. Step 6: Final answer
    x = 99,788.47

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1.5x scale

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.