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Finding the Fourth Proportional to 220,645.77, 330,980.96 and 62,861.93

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Solution

The fourth proportional to 220,645.77, 330,980.96 and 62,861.93 is: 94,296.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,645.77 : 330,980.96 = 62,861.93 : x
  2. Step 2: Convert to fraction form
    220,645.77/330,980.96 = 62,861.93/x
  3. Step 3: Cross multiply
    220,645.77x = 330,980.96 × 62,861.93
  4. Step 4: Simplify right side
    220,645.77x = 20,806,099,969.64
  5. Step 5: Solve for x
    x = 20,806,099,969.64/220,645.77
  6. Step 6: Final answer
    x = 94,296.39

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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.