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Finding the Fourth Proportional to 99,514.58, 137,504.99 and 79,536.33

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Solution

The fourth proportional to 99,514.58, 137,504.99 and 79,536.33 is: 109,899.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,514.58 : 137,504.99 = 79,536.33 : x
  2. Step 2: Convert to fraction form
    99,514.58/137,504.99 = 79,536.33/x
  3. Step 3: Cross multiply
    99,514.58x = 137,504.99 × 79,536.33
  4. Step 4: Simplify right side
    99,514.58x = 10,936,642,460.13
  5. Step 5: Solve for x
    x = 10,936,642,460.13/99,514.58
  6. Step 6: Final answer
    x = 109,899.91

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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.