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Finding the Fourth Proportional to 101,523.02, 140,099.54 and 55,582.56

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Solution

The fourth proportional to 101,523.02, 140,099.54 and 55,582.56 is: 76,702.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,523.02 : 140,099.54 = 55,582.56 : x
  2. Step 2: Convert to fraction form
    101,523.02/140,099.54 = 55,582.56/x
  3. Step 3: Cross multiply
    101,523.02x = 140,099.54 × 55,582.56
  4. Step 4: Simplify right side
    101,523.02x = 7,787,090,810.11
  5. Step 5: Solve for x
    x = 7,787,090,810.11/101,523.02
  6. Step 6: Final answer
    x = 76,702.71

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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.