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Finding the Fourth Proportional to 160,611.42, 221,643.90 and 88,992.66

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Solution

The fourth proportional to 160,611.42, 221,643.90 and 88,992.66 is: 122,809.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,611.42 : 221,643.90 = 88,992.66 : x
  2. Step 2: Convert to fraction form
    160,611.42/221,643.90 = 88,992.66/x
  3. Step 3: Cross multiply
    160,611.42x = 221,643.90 × 88,992.66
  4. Step 4: Simplify right side
    160,611.42x = 19,724,680,233.77
  5. Step 5: Solve for x
    x = 19,724,680,233.77/160,611.42
  6. Step 6: Final answer
    x = 122,809.95

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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.