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Finding the Fourth Proportional to 159,956.64, 220,738.95 and 88,336.08

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Solution

The fourth proportional to 159,956.64, 220,738.95 and 88,336.08 is: 121,903.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,956.64 : 220,738.95 = 88,336.08 : x
  2. Step 2: Convert to fraction form
    159,956.64/220,738.95 = 88,336.08/x
  3. Step 3: Cross multiply
    159,956.64x = 220,738.95 × 88,336.08
  4. Step 4: Simplify right side
    159,956.64x = 19,499,213,546.32
  5. Step 5: Solve for x
    x = 19,499,213,546.32/159,956.64
  6. Step 6: Final answer
    x = 121,903.12

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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.