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Finding the Fourth Proportional to 72,602.55, 108,899.90 and 22,676.91

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Solution

The fourth proportional to 72,602.55, 108,899.90 and 22,676.91 is: 34,014.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,602.55 : 108,899.90 = 22,676.91 : x
  2. Step 2: Convert to fraction form
    72,602.55/108,899.90 = 22,676.91/x
  3. Step 3: Cross multiply
    72,602.55x = 108,899.90 × 22,676.91
  4. Step 4: Simplify right side
    72,602.55x = 2,469,513,117.92
  5. Step 5: Solve for x
    x = 2,469,513,117.92/72,602.55
  6. Step 6: Final answer
    x = 34,014.14

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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.