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Finding the Fourth Proportional to 159,863.12, 220,611.14 and 88,243.17

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Solution

The fourth proportional to 159,863.12, 220,611.14 and 88,243.17 is: 121,775.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,863.12 : 220,611.14 = 88,243.17 : x
  2. Step 2: Convert to fraction form
    159,863.12/220,611.14 = 88,243.17/x
  3. Step 3: Cross multiply
    159,863.12x = 220,611.14 × 88,243.17
  4. Step 4: Simplify right side
    159,863.12x = 19,467,426,330.91
  5. Step 5: Solve for x
    x = 19,467,426,330.91/159,863.12
  6. Step 6: Final answer
    x = 121,775.59

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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.