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Finding the Fourth Proportional to 68,676.73, 103,483.05 and 56,470.19

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Solution

The fourth proportional to 68,676.73, 103,483.05 and 56,470.19 is: 85,090.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,676.73 : 103,483.05 = 56,470.19 : x
  2. Step 2: Convert to fraction form
    68,676.73/103,483.05 = 56,470.19/x
  3. Step 3: Cross multiply
    68,676.73x = 103,483.05 × 56,470.19
  4. Step 4: Simplify right side
    68,676.73x = 5,843,707,495.28
  5. Step 5: Solve for x
    x = 5,843,707,495.28/68,676.73
  6. Step 6: Final answer
    x = 85,090.07

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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.