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Finding the Fourth Proportional to 108,956.58, 163,422.63 and 30,082.02

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Solution

The fourth proportional to 108,956.58, 163,422.63 and 30,082.02 is: 45,119.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,956.58 : 163,422.63 = 30,082.02 : x
  2. Step 2: Convert to fraction form
    108,956.58/163,422.63 = 30,082.02/x
  3. Step 3: Cross multiply
    108,956.58x = 163,422.63 × 30,082.02
  4. Step 4: Simplify right side
    108,956.58x = 4,916,082,824.11
  5. Step 5: Solve for x
    x = 4,916,082,824.11/108,956.58
  6. Step 6: Final answer
    x = 45,119.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.