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Finding the Fourth Proportional to 68,676.57, 94,779.69 and 38,461.41

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Solution

The fourth proportional to 68,676.57, 94,779.69 and 38,461.41 is: 53,080.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,676.57 : 94,779.69 = 38,461.41 : x
  2. Step 2: Convert to fraction form
    68,676.57/94,779.69 = 38,461.41/x
  3. Step 3: Cross multiply
    68,676.57x = 94,779.69 × 38,461.41
  4. Step 4: Simplify right side
    68,676.57x = 3,645,360,516.76
  5. Step 5: Solve for x
    x = 3,645,360,516.76/68,676.57
  6. Step 6: Final answer
    x = 53,080.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.