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Finding the Fourth Proportional to 106,676.68, 147,219.30 and 58,929.64

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Solution

The fourth proportional to 106,676.68, 147,219.30 and 58,929.64 is: 81,325.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,676.68 : 147,219.30 = 58,929.64 : x
  2. Step 2: Convert to fraction form
    106,676.68/147,219.30 = 58,929.64/x
  3. Step 3: Cross multiply
    106,676.68x = 147,219.30 × 58,929.64
  4. Step 4: Simplify right side
    106,676.68x = 8,675,580,350.05
  5. Step 5: Solve for x
    x = 8,675,580,350.05/106,676.68
  6. Step 6: Final answer
    x = 81,325.93

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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.