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Finding the Fourth Proportional to 68,676.47, 103,482.68 and 56,469.94

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Solution

The fourth proportional to 68,676.47, 103,482.68 and 56,469.94 is: 85,089.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,676.47 : 103,482.68 = 56,469.94 : x
  2. Step 2: Convert to fraction form
    68,676.47/103,482.68 = 56,469.94/x
  3. Step 3: Cross multiply
    68,676.47x = 103,482.68 × 56,469.94
  4. Step 4: Simplify right side
    68,676.47x = 5,843,660,189.58
  5. Step 5: Solve for x
    x = 5,843,660,189.58/68,676.47
  6. Step 6: Final answer
    x = 85,089.70

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.