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Finding the Fourth Proportional to 101,851.98, 140,557.26 and 56,532.90

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Solution

The fourth proportional to 101,851.98, 140,557.26 and 56,532.90 is: 78,016.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,851.98 : 140,557.26 = 56,532.90 : x
  2. Step 2: Convert to fraction form
    101,851.98/140,557.26 = 56,532.90/x
  3. Step 3: Cross multiply
    101,851.98x = 140,557.26 × 56,532.90
  4. Step 4: Simplify right side
    101,851.98x = 7,946,109,523.85
  5. Step 5: Solve for x
    x = 7,946,109,523.85/101,851.98
  6. Step 6: Final answer
    x = 78,016.25

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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.