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Finding the Fourth Proportional to 68,695.32, 103,057.56 and 23,720.88

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Solution

The fourth proportional to 68,695.32, 103,057.56 and 23,720.88 is: 35,586.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,695.32 : 103,057.56 = 23,720.88 : x
  2. Step 2: Convert to fraction form
    68,695.32/103,057.56 = 23,720.88/x
  3. Step 3: Cross multiply
    68,695.32x = 103,057.56 × 23,720.88
  4. Step 4: Simplify right side
    68,695.32x = 2,444,616,013.85
  5. Step 5: Solve for x
    x = 2,444,616,013.85/68,695.32
  6. Step 6: Final answer
    x = 35,586.35

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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.