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Finding the Fourth Proportional to 68,660.01, 102,705.65 and 64,460.97

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Solution

The fourth proportional to 68,660.01, 102,705.65 and 64,460.97 is: 96,424.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,660.01 : 102,705.65 = 64,460.97 : x
  2. Step 2: Convert to fraction form
    68,660.01/102,705.65 = 64,460.97/x
  3. Step 3: Cross multiply
    68,660.01x = 102,705.65 × 64,460.97
  4. Step 4: Simplify right side
    68,660.01x = 6,620,505,823.48
  5. Step 5: Solve for x
    x = 6,620,505,823.48/68,660.01
  6. Step 6: Final answer
    x = 96,424.48

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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.