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Finding the Fourth Proportional to 160,553.63, 221,571.29 and 88,933.64

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Solution

The fourth proportional to 160,553.63, 221,571.29 and 88,933.64 is: 122,732.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,553.63 : 221,571.29 = 88,933.64 : x
  2. Step 2: Convert to fraction form
    160,553.63/221,571.29 = 88,933.64/x
  3. Step 3: Cross multiply
    160,553.63x = 221,571.29 × 88,933.64
  4. Step 4: Simplify right side
    160,553.63x = 19,705,139,786.67
  5. Step 5: Solve for x
    x = 19,705,139,786.67/160,553.63
  6. Step 6: Final answer
    x = 122,732.45

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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.