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Finding the Fourth Proportional to 72,271.01, 108,398.30 and 27,893.94

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Solution

The fourth proportional to 72,271.01, 108,398.30 and 27,893.94 is: 41,837.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,271.01 : 108,398.30 = 27,893.94 : x
  2. Step 2: Convert to fraction form
    72,271.01/108,398.30 = 27,893.94/x
  3. Step 3: Cross multiply
    72,271.01x = 108,398.30 × 27,893.94
  4. Step 4: Simplify right side
    72,271.01x = 3,023,655,536.83
  5. Step 5: Solve for x
    x = 3,023,655,536.83/72,271.01
  6. Step 6: Final answer
    x = 41,837.74

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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.