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Finding the Fourth Proportional to 220,100.10, 330,150.15 and 79,808.10

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Solution

The fourth proportional to 220,100.10, 330,150.15 and 79,808.10 is: 119,712.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,100.10 : 330,150.15 = 79,808.10 : x
  2. Step 2: Convert to fraction form
    220,100.10/330,150.15 = 79,808.10/x
  3. Step 3: Cross multiply
    220,100.10x = 330,150.15 × 79,808.10
  4. Step 4: Simplify right side
    220,100.10x = 26,348,656,186.22
  5. Step 5: Solve for x
    x = 26,348,656,186.22/220,100.10
  6. Step 6: Final answer
    x = 119,712.15

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.