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Finding the Fourth Proportional to 68,300.64, 102,447.28 and 26,200.88

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Solution

The fourth proportional to 68,300.64, 102,447.28 and 26,200.88 is: 39,299.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,300.64 : 102,447.28 = 26,200.88 : x
  2. Step 2: Convert to fraction form
    68,300.64/102,447.28 = 26,200.88/x
  3. Step 3: Cross multiply
    68,300.64x = 102,447.28 × 26,200.88
  4. Step 4: Simplify right side
    68,300.64x = 2,684,208,889.61
  5. Step 5: Solve for x
    x = 2,684,208,889.61/68,300.64
  6. Step 6: Final answer
    x = 39,299.91

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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.