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Finding the Fourth Proportional to 71,904.28, 107,905.04 and 25,157.56

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Solution

The fourth proportional to 71,904.28, 107,905.04 and 25,157.56 is: 37,753.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,904.28 : 107,905.04 = 25,157.56 : x
  2. Step 2: Convert to fraction form
    71,904.28/107,905.04 = 25,157.56/x
  3. Step 3: Cross multiply
    71,904.28x = 107,905.04 × 25,157.56
  4. Step 4: Simplify right side
    71,904.28x = 2,714,627,518.10
  5. Step 5: Solve for x
    x = 2,714,627,518.10/71,904.28
  6. Step 6: Final answer
    x = 37,753.35

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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.