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Finding the Fourth Proportional to 68,676.96, 102,730.68 and 64,477.92

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Solution

The fourth proportional to 68,676.96, 102,730.68 and 64,477.92 is: 96,449.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,676.96 : 102,730.68 = 64,477.92 : x
  2. Step 2: Convert to fraction form
    68,676.96/102,730.68 = 64,477.92/x
  3. Step 3: Cross multiply
    68,676.96x = 102,730.68 × 64,477.92
  4. Step 4: Simplify right side
    68,676.96x = 6,623,860,566.59
  5. Step 5: Solve for x
    x = 6,623,860,566.59/68,676.96
  6. Step 6: Final answer
    x = 96,449.53

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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.