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Finding the Fourth Proportional to 159,563.46, 220,188.60 and 87,943.26

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Solution

The fourth proportional to 159,563.46, 220,188.60 and 87,943.26 is: 121,356.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,563.46 : 220,188.60 = 87,943.26 : x
  2. Step 2: Convert to fraction form
    159,563.46/220,188.60 = 87,943.26/x
  3. Step 3: Cross multiply
    159,563.46x = 220,188.60 × 87,943.26
  4. Step 4: Simplify right side
    159,563.46x = 19,364,103,298.84
  5. Step 5: Solve for x
    x = 19,364,103,298.84/159,563.46
  6. Step 6: Final answer
    x = 121,356.75

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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.