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Finding the Fourth Proportional to 160,571.20, 221,585.20 and 88,951.81

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Solution

The fourth proportional to 160,571.20, 221,585.20 and 88,951.81 is: 122,751.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,571.20 : 221,585.20 = 88,951.81 : x
  2. Step 2: Convert to fraction form
    160,571.20/221,585.20 = 88,951.81/x
  3. Step 3: Cross multiply
    160,571.20x = 221,585.20 × 88,951.81
  4. Step 4: Simplify right side
    160,571.20x = 19,710,403,584.18
  5. Step 5: Solve for x
    x = 19,710,403,584.18/160,571.20
  6. Step 6: Final answer
    x = 122,751.80

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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.