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Finding the Fourth Proportional to 160,563.56, 240,994.80 and 81,736.79

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Solution

The fourth proportional to 160,563.56, 240,994.80 and 81,736.79 is: 122,681.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,563.56 : 240,994.80 = 81,736.79 : x
  2. Step 2: Convert to fraction form
    160,563.56/240,994.80 = 81,736.79/x
  3. Step 3: Cross multiply
    160,563.56x = 240,994.80 × 81,736.79
  4. Step 4: Simplify right side
    160,563.56x = 19,698,140,153.72
  5. Step 5: Solve for x
    x = 19,698,140,153.72/160,563.56
  6. Step 6: Final answer
    x = 122,681.27

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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.