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Finding the Fourth Proportional to 160,611.73, 221,640.92 and 88,991.53

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Solution

The fourth proportional to 160,611.73, 221,640.92 and 88,991.53 is: 122,806.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,611.73 : 221,640.92 = 88,991.53 : x
  2. Step 2: Convert to fraction form
    160,611.73/221,640.92 = 88,991.53/x
  3. Step 3: Cross multiply
    160,611.73x = 221,640.92 × 88,991.53
  4. Step 4: Simplify right side
    160,611.73x = 19,724,164,136.45
  5. Step 5: Solve for x
    x = 19,724,164,136.45/160,611.73
  6. Step 6: Final answer
    x = 122,806.50

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1.5x scale

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.