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Finding the Fourth Proportional to 106,393.44, 146,816.28 and 58,647.20

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Solution

The fourth proportional to 106,393.44, 146,816.28 and 58,647.20 is: 80,929.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,393.44 : 146,816.28 = 58,647.20 : x
  2. Step 2: Convert to fraction form
    106,393.44/146,816.28 = 58,647.20/x
  3. Step 3: Cross multiply
    106,393.44x = 146,816.28 × 58,647.20
  4. Step 4: Simplify right side
    106,393.44x = 8,610,363,736.42
  5. Step 5: Solve for x
    x = 8,610,363,736.42/106,393.44
  6. Step 6: Final answer
    x = 80,929.46

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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.