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Finding the Fourth Proportional to 160,554.56, 240,981.28 and 81,727.79

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Solution

The fourth proportional to 160,554.56, 240,981.28 and 81,727.79 is: 122,667.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,554.56 : 240,981.28 = 81,727.79 : x
  2. Step 2: Convert to fraction form
    160,554.56/240,981.28 = 81,727.79/x
  3. Step 3: Cross multiply
    160,554.56x = 240,981.28 × 81,727.79
  4. Step 4: Simplify right side
    160,554.56x = 19,694,866,036.55
  5. Step 5: Solve for x
    x = 19,694,866,036.55/160,554.56
  6. Step 6: Final answer
    x = 122,667.75

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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.