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Finding the Fourth Proportional to 80,646.35, 120,893.94 and 27,301.01

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Solution

The fourth proportional to 80,646.35, 120,893.94 and 27,301.01 is: 40,925.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,646.35 : 120,893.94 = 27,301.01 : x
  2. Step 2: Convert to fraction form
    80,646.35/120,893.94 = 27,301.01/x
  3. Step 3: Cross multiply
    80,646.35x = 120,893.94 × 27,301.01
  4. Step 4: Simplify right side
    80,646.35x = 3,300,526,060.41
  5. Step 5: Solve for x
    x = 3,300,526,060.41/80,646.35
  6. Step 6: Final answer
    x = 40,925.92

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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.