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Finding the Fourth Proportional to 109,644.54, 151,309.40 and 59,343.54

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Solution

The fourth proportional to 109,644.54, 151,309.40 and 59,343.54 is: 81,894.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,644.54 : 151,309.40 = 59,343.54 : x
  2. Step 2: Convert to fraction form
    109,644.54/151,309.40 = 59,343.54/x
  3. Step 3: Cross multiply
    109,644.54x = 151,309.40 × 59,343.54
  4. Step 4: Simplify right side
    109,644.54x = 8,979,235,134.56
  5. Step 5: Solve for x
    x = 8,979,235,134.56/109,644.54
  6. Step 6: Final answer
    x = 81,894.05

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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.