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Finding the Fourth Proportional to 101,247.17, 151,754.11 and 54,401.63

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Solution

The fourth proportional to 101,247.17, 151,754.11 and 54,401.63 is: 81,539.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,247.17 : 151,754.11 = 54,401.63 : x
  2. Step 2: Convert to fraction form
    101,247.17/151,754.11 = 54,401.63/x
  3. Step 3: Cross multiply
    101,247.17x = 151,754.11 × 54,401.63
  4. Step 4: Simplify right side
    101,247.17x = 8,255,670,048.42
  5. Step 5: Solve for x
    x = 8,255,670,048.42/101,247.17
  6. Step 6: Final answer
    x = 81,539.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.