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Finding the Fourth Proportional to 82,005.40, 123,008.10 and 26,601.40

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Solution

The fourth proportional to 82,005.40, 123,008.10 and 26,601.40 is: 39,902.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,005.40 : 123,008.10 = 26,601.40 : x
  2. Step 2: Convert to fraction form
    82,005.40/123,008.10 = 26,601.40/x
  3. Step 3: Cross multiply
    82,005.40x = 123,008.10 × 26,601.40
  4. Step 4: Simplify right side
    82,005.40x = 3,272,187,671.34
  5. Step 5: Solve for x
    x = 3,272,187,671.34/82,005.40
  6. Step 6: Final answer
    x = 39,902.10

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.