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Finding the Fourth Proportional to 109,640.44, 151,303.82 and 59,339.44

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Solution

The fourth proportional to 109,640.44, 151,303.82 and 59,339.44 is: 81,888.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,640.44 : 151,303.82 = 59,339.44 : x
  2. Step 2: Convert to fraction form
    109,640.44/151,303.82 = 59,339.44/x
  3. Step 3: Cross multiply
    109,640.44x = 151,303.82 × 59,339.44
  4. Step 4: Simplify right side
    109,640.44x = 8,978,283,948.66
  5. Step 5: Solve for x
    x = 8,978,283,948.66/109,640.44
  6. Step 6: Final answer
    x = 81,888.43

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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.