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Finding the Fourth Proportional to 71,265.56, 106,904.44 and 18,675.04

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Solution

The fourth proportional to 71,265.56, 106,904.44 and 18,675.04 is: 28,014.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,265.56 : 106,904.44 = 18,675.04 : x
  2. Step 2: Convert to fraction form
    71,265.56/106,904.44 = 18,675.04/x
  3. Step 3: Cross multiply
    71,265.56x = 106,904.44 × 18,675.04
  4. Step 4: Simplify right side
    71,265.56x = 1,996,444,693.18
  5. Step 5: Solve for x
    x = 1,996,444,693.18/71,265.56
  6. Step 6: Final answer
    x = 28,014.16

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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.