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Finding the Fourth Proportional to 220,518.58, 330,795.42 and 68,697.04

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Solution

The fourth proportional to 220,518.58, 330,795.42 and 68,697.04 is: 103,051.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,518.58 : 330,795.42 = 68,697.04 : x
  2. Step 2: Convert to fraction form
    220,518.58/330,795.42 = 68,697.04/x
  3. Step 3: Cross multiply
    220,518.58x = 330,795.42 × 68,697.04
  4. Step 4: Simplify right side
    220,518.58x = 22,724,666,199.56
  5. Step 5: Solve for x
    x = 22,724,666,199.56/220,518.58
  6. Step 6: Final answer
    x = 103,051.03

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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.