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Finding the Fourth Proportional to 79,029.56, 108,972.78 and 58,898.36

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Solution

The fourth proportional to 79,029.56, 108,972.78 and 58,898.36 is: 81,214.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,029.56 : 108,972.78 = 58,898.36 : x
  2. Step 2: Convert to fraction form
    79,029.56/108,972.78 = 58,898.36/x
  3. Step 3: Cross multiply
    79,029.56x = 108,972.78 × 58,898.36
  4. Step 4: Simplify right side
    79,029.56x = 6,418,318,026.64
  5. Step 5: Solve for x
    x = 6,418,318,026.64/79,029.56
  6. Step 6: Final answer
    x = 81,214.14

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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.