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Finding the Fourth Proportional to 220,776.72, 331,168.19 and 63,005.19

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Solution

The fourth proportional to 220,776.72, 331,168.19 and 63,005.19 is: 94,508.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,776.72 : 331,168.19 = 63,005.19 : x
  2. Step 2: Convert to fraction form
    220,776.72/331,168.19 = 63,005.19/x
  3. Step 3: Cross multiply
    220,776.72x = 331,168.19 × 63,005.19
  4. Step 4: Simplify right side
    220,776.72x = 20,865,314,417.88
  5. Step 5: Solve for x
    x = 20,865,314,417.88/220,776.72
  6. Step 6: Final answer
    x = 94,508.67

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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.