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Finding the Fourth Proportional to 79,808.34, 110,136.28 and 43,999.66

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Solution

The fourth proportional to 79,808.34, 110,136.28 and 43,999.66 is: 60,719.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,808.34 : 110,136.28 = 43,999.66 : x
  2. Step 2: Convert to fraction form
    79,808.34/110,136.28 = 43,999.66/x
  3. Step 3: Cross multiply
    79,808.34x = 110,136.28 × 43,999.66
  4. Step 4: Simplify right side
    79,808.34x = 4,845,958,873.66
  5. Step 5: Solve for x
    x = 4,845,958,873.66/79,808.34
  6. Step 6: Final answer
    x = 60,719.96

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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.