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Finding the Fourth Proportional to 117,898.98, 162,652.50 and 72,563.28

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Solution

The fourth proportional to 117,898.98, 162,652.50 and 72,563.28 is: 100,107.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,898.98 : 162,652.50 = 72,563.28 : x
  2. Step 2: Convert to fraction form
    117,898.98/162,652.50 = 72,563.28/x
  3. Step 3: Cross multiply
    117,898.98x = 162,652.50 × 72,563.28
  4. Step 4: Simplify right side
    117,898.98x = 11,802,598,900.20
  5. Step 5: Solve for x
    x = 11,802,598,900.20/117,898.98
  6. Step 6: Final answer
    x = 100,107.73

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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.