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Finding the Fourth Proportional to 160,861.32, 221,952.92 and 92,863.53

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Solution

The fourth proportional to 160,861.32, 221,952.92 and 92,863.53 is: 128,131.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,861.32 : 221,952.92 = 92,863.53 : x
  2. Step 2: Convert to fraction form
    160,861.32/221,952.92 = 92,863.53/x
  3. Step 3: Cross multiply
    160,861.32x = 221,952.92 × 92,863.53
  4. Step 4: Simplify right side
    160,861.32x = 20,611,331,180.69
  5. Step 5: Solve for x
    x = 20,611,331,180.69/160,861.32
  6. Step 6: Final answer
    x = 128,131.06

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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.