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Finding the Fourth Proportional to 149,643.88, 206,551.74 and 88,446.76

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Solution

The fourth proportional to 149,643.88, 206,551.74 and 88,446.76 is: 122,082.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,643.88 : 206,551.74 = 88,446.76 : x
  2. Step 2: Convert to fraction form
    149,643.88/206,551.74 = 88,446.76/x
  3. Step 3: Cross multiply
    149,643.88x = 206,551.74 × 88,446.76
  4. Step 4: Simplify right side
    149,643.88x = 18,268,832,175.36
  5. Step 5: Solve for x
    x = 18,268,832,175.36/149,643.88
  6. Step 6: Final answer
    x = 122,082.05

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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.