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Finding the Fourth Proportional to 68,250.51, 102,383.96 and 64,518.03

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Solution

The fourth proportional to 68,250.51, 102,383.96 and 64,518.03 is: 96,784.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,250.51 : 102,383.96 = 64,518.03 : x
  2. Step 2: Convert to fraction form
    68,250.51/102,383.96 = 64,518.03/x
  3. Step 3: Cross multiply
    68,250.51x = 102,383.96 × 64,518.03
  4. Step 4: Simplify right side
    68,250.51x = 6,605,611,080.21
  5. Step 5: Solve for x
    x = 6,605,611,080.21/68,250.51
  6. Step 6: Final answer
    x = 96,784.79

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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.